Help please <3 end of quarter is soon!

Help Please &lt;3 End Of Quarter Is Soon!

Answers

Answer 1

Answer:

x = 2

Step-by-step explanation:

8x - 21 - 5x = - 15 ( collect like terms on left side )

3x - 21 = - 15 ( add 21 to both sides so numeric values on right side )

3x = 6 ( isolate x by dividing both sides by 3 )

x = 2

Answer 2

The equation that has the solution 8x – 21 – 5x = -15 is x = 2.

Solving steps :
A. Collect like term.
8x – 21 – 5x = -15
Collect term that have the same variables raised to the same power by subtracting their coefficients.
(8 – 5)x
Subtract the numbers.
We'll start by rewriting this subtraction as an addition problem. To do that, let's copy over the 8.
8 – 5 = 8
We're rewriting as addition, so change the minus sign to a plus.
8 – 5 = 8 +
Now we'll write the opposite of 5 after the plus sign.
8 – 5 = 8 + (-5)
We did it! The result is 3.
8 – 5 = 3
We did it!
(8 – 5)x
3x
We did it!
8x – 21 – 5x = -15
3x – 21 = -15

B. Move the constant to the right.
3x – 21 = -15
Move the constant to the right-hand side by adding it’s opposite to both sides.
3x – 21 + 21 = - 15 + 21
Since two opposites add up to 0, remove them from the expression.
3x = -15 + 21

C. Calculate the sum.
3x = -15 + 21
Keep the sign of the number with the large absolute value and substract the smaller absolute value from the larger.
- 15 + 21
+ (21 - 15)
Substract the numbers.
We did it! The result is 6.
3x = 6

D. Divide both sides.
3x = 6
Divide both sides of the equation by 3.
3x ÷ 3 = 6 ÷ 3
Any expression divided by itself equals 1.
x = 6 ÷ 3
Calculate the quotient.
x = 2

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Related Questions

Which is bigger 5/8 or 3/5

Answers

Answer:

[tex] \frac{5}{8} and \: \frac{3}{5} \\ \\ \frac{5 \times 5}{8 \times 5} = \frac{25}{40} \\ \\ \frac{3 \times 8}{5 \times 8} = \frac{24}{40} \\ \\ \frac{25}{40} > \frac{24}{40} \\ \\ so \: \frac{5}{8} > \frac{3}{5} [/tex]

Please I need help please

Answers

Answer:

Step-by-step explanation:

1=88


2=42



3=42+25+x=180

3=180-67

Evaluate 5 (2)² – 6.
5(2)² - 6 =

Answers

Here you go:()
Hope it helps
They answer would be 14

Work out m and c for the line 2y+3x = -5

Answers

Answer:

Step-by-step explanation:

2y=-3x-5

y=-3/2x-5/2

Answer:

Y= -2.5

X= -1.6

Step-by-step explanation:

2y+3x= -5

2y+3(0)= -5

2y= -5

2y÷2=y

-5÷2= -2.5

Y=-2.5

2y+3x= -5

2(0)+3x= -5

3x= -5

3x÷3=x

-5÷3= -1.6

X= -1.6

need the answer for b quickly. it's the thing you put at the start of a axis when there a unequal gap. looks like this(_/\/\/\_) I forgot the name for it ​

Answers

150 cm

look at the beginning of the axis. it goes 140 to 160. then 160 to 170. it isnt in order. the missing mumber is 150

solve the inequality
8<3(y-2)

Answers

Answer:

y>14/3

Step-by-step explanation:

Let's solve your inequality step-by-step.

8<3(y−2)

Step 1: Simplify both sides of the inequality.

8<3y−6

Step 2: Flip the equation.

3y−6>8

Step 3: Add 6 to both sides.

3y−6+6>8+6

3y>14

Step 4: Divide both sides by 3.

3y/3 > 14/3

Answer: y>14/3

Hope it helps!

A researcher performs an experiment to test a hypothesis that involves the nutrients niacin
and retinol. She feeds one group of laboratory rats a daily diet of precisely 32 units of niacin
and 22000 units of retinol. She uses two types of commercial pellet foods. Food A contains
0,12 unit of niacin and 100 units of retinol per gram. Food B contains 0,20 unit of niacin and
50 units of retinol per gram. How many grams of each food does she feed this group of rats
each day?

Answers

The amount in grams of food A and B she feeds this group of rats each day will be 2200003.84 gm and 1100006.4 gm respectively.

What is an arithmetic operation?

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.

Given that, she provides a certain set of lab rats with a daily meal that contains exactly 32 units of niacin and 22000 units of retinol. She uses two different brands of industrial pellet food.

If food A has 100 units of retinol and 0,12 units of niacin per gram.Niacin 0.20 units and retinol 50 units are both included in Food B per gram. The grams of each food she feeds this group A of rats each day is,

=32×0.12+22000×100

=2200003.84 gm

If food B contains 0,20 units of niacin and 50 units of retinol per gram.The grams of each food she feeds this group A of rats each day is,

=32×0.20+22000×50

=1100006.4

Thus, the amount in grams of food A and B she feeds this group of rats each day will be 2200003.84 gm and 1100006.4 gm respectively.

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can someone please help me it says to simplify it

Answers

Answer:

B

Step-by-step explanation:

[tex]\frac{1}{5}[/tex] b - 5( [tex]\frac{2}{5}[/tex] a - [tex]\frac{1}{10}[/tex] b ) + 4a ← distribute parenthesis by - 5

[tex]\frac{1}{5}[/tex] b - 2a + [tex]\frac{1}{2}[/tex] b + 4a ← collect like terms

= 2a + [tex]\frac{1}{5}[/tex] b + [tex]\frac{1}{2}[/tex] b ( express fractions with a common denominator of 10 )

= 2a + [tex]\frac{2}{10}[/tex] b + [tex]\frac{5}{10}[/tex] b

= 2a + [tex]\frac{7}{10}[/tex] b

B is your answer
Hope you get it

L (-1,-2), M (3,6); ratio 5 to 3

I NEED HELP LIKE NOWW

Answers

The coordinates of the points dividing the line in 5:3 is (3/2, 3)

What is section formula?

The section formula gives the coordinates of a point which divides the line joining two points in a ratio, internally or externally.

Given a line LM, passing through points  (-1,-2) and (3,6) a point is dividing it in a ratio of 5:3

According to section formula,

(x, y) = (5*3 - 3*1)/8, (5*6 - 3*2)/8

(x, y) = (3/2, 3)

Hence, The coordinates of the points dividing the line in 5:3 is (3/2, 3)

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Dracula is broke. He had to borrow $5 from you. Now you are broke. You have to borrow $5 from your brother franjenstein. Now Frankenstein is broke. He has to borrow $2 from Dracula. How can everybody be paid back in just one payment i

Answers

Answer:

Have Dracula pay you $5

Step-by-step explanation:

This whole thing happened because Dracula was broke. If $5 is given to Dracula, he can give you back $5 so you can return 5$ to Frankenstein. Then Frankenstein can give $2 back to Dracula.

Find the greatest possible x-coordinate of point A such that for any point B on the y-axis between (-24) and 25, the segment AB has a common point with the line segment PQ, where P(5, -12), Q(5, 9).

Answers

Answer:

  8.75

Step-by-step explanation:

You want the greatest possible x-coordinate of point A such that for any point B on the y-axis between (-24) and 25, the segment AB has a common point with the line segment PQ, where P(5, -12), Q(5, 9).

Geometry

If we designate the points on the y-axis as X(0, -24) and Y(0, 25), we find that point A must lie in the triangle bounded by lines XY, XP, and YQ. The x-coordinate of the point of intersection of lines XP and YQ will be the greatest x-coordinate that point A can have.

Equations

The line through points (x1, y1) and (x2, y2) can be written as ...

  (y2 -y1)(x -x1) -(x2 -x1)(y -y1) = 0

This equation is readily simplified to general form ax+by+c = 0.

Line XP

  (-12-(-24))(x -0) -(5-0)(y -(-24)) = 0

  12x -5y -120 = 0

Line YQ

  (9 -25)(x -0) -(5 -0)(y -(25)) = 0

  -16x -5y +125 = 0

We want the value of x that satisfies these equations. That can be found by subtracting the second equation from the first:

  (12 -5y -120) -(-16x -5y +125) = (0) -(0)

  28x -245 = 0

  x = 245/28 = 8.75

The greatest x-coordinate is x = 8.75.

What is the correlation coefficient for the data (0, 3), (1, 2), (2,0)?
A0.54
B 0.93
-0.67
-0.98

Answers

Answer:

-0.98

Step-by-step explanation:

Answer:-0.98

Step-by-step explanation:

Pls help I forgot how to work out bearings

Answers

Note that because the graph is slightly deformed to the left, it is impossible to work out the exact bearing. Below, however, are steps on how to get the bearing of a map.

How do you work the bearings of a map?

Calculate the angle clockwise from north to determine a bearing. Begin with the first site by drawing a vertical line symbolizing north. Draw a line from the starting point to the ending point. Calculate the clockwise angle formed by the north line and this line.

When measuring a bearing, three principles must be followed:

Always determine the angle counterclockwise.Always evaluate the angle from north to south.Always use a three-figure bearing (for example, 030° instead than 30°).

Note that a bearing is an angle in degrees calculated clockwise from north in mathematics. Bearings are often specified in three figures. 30° clockwise from north, for example, is generally represented as 030°.

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BRAINLIST! WHEN ANSWERED!
What are two things to know about the OPPOSITE SIDES of a parallelogram?
1.
2.

Answers

Answer:

Opposite sides of a parallelogram are:

1. Congruent

2. Parallel

Step-by-step explanation:

Opposite parallel and congruent sides are the features of a parallelogram and are the criteria for a quadrilateral to be a parallelogram.

give an explanation please thank you

Answers

The statement of Gabriella, “The graph will not have an inverse function.” is incorrect. Option B is correct.

Let us understand about the given graph:

The given graph is a graph of a cube root function.

So, the statement of Noelle, “The graph represents the function [tex]f(x)=\sqrt[3]{x}[/tex]." is correct.

So, option A is not correct.

The inverse of a cube root function is a cubic function.

So, the statement of Gabriella, “The graph will not have an inverse function.” is incorrect.

So, option B is correct.

The domain and range of the cube root function are all real numbers.

So, the statement of Julian, “The domain and range of the function is all real numbers.” is correct.

So, option C is not correct.

From the graph, we can see f(-1) = -1.

So, the statement of Yemen, “The value of f(-1) = -1.” is correct.

So, option D is not correct.

Thus, the statement of Gabriella, “The graph will not have an inverse function.” is incorrect. Option B is correct.

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“Solve the following systems of equations using any method” ( elimination, substitution, graphing)

Answers

Answer:

(0, 3)

===========================

Given system

y = 2x + 3y = - 3x + 3

Solve by substitution/elimination

2x + 3 = - 3x + 32x + 3x = 3 - 35x = 0x = 0

y = 2*0 + 3y = 3

Answer:

x = 0y = 3

Step-by-step explanation:

Forming the equation,

→ 2x + 3 = -3x + 3

Now the value of x will be,

→ 2x + 3 = -3x + 3

→ 2x + 3x = 3 - 3

→ 5x = 0

→ x = 0/5

→ [ x = 0 ]

Then the value of y will be,

→ y = -3x + 3

→ y = -3(0) + 3

→ y = 0 + 3

→ [ y = 3 ]

Hence, the value of y is 3.

use three unit multiplier to convert 314 inches to kilometers

Answers

Answer:

Step-by-step explanation:

314 inches  *  (1 foot / 12 inches) * ( 1 meter / 3.28084 foot) * ( 1 kilometer / 1000 meter)

0.0079755997 Km

what fraction shows the number of hours saide's dog sleeps every 4 hours in a day? Complete the fraction.

Answers

The fraction that shows the number of hours Saide's dog sleeps every 4 hours in a day is 1/6.

How to calculate the fraction?

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

It should be noted that there are 24 hours in day. Since the dog sleeps for 4 hours in a day, the fraction will be:

= Number of hours slept / Total hours

= 4 / 24.

= 1/6

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a) Complete the table of values for y = 6 - 2x

Answers

Answer:

4x

Step-by-step explanation:

bcoz

y = 6 - 2x

6-2x = 4x

y=4x

Simplify the expression.
1
5z + +9y+ +6z-6y
20
4
20
1
5z + +9y+ +6z-6y=
20
(Use the, operation symbols in the math palette as needed. Simplify ya
expression.)
4
20

Answers

Answer:

3.7 n^2 + 4n + 2.1

Step-by-step explanation:

2.7 n^2 + n^2 = 3.7 n^2

6n - 2n = 4n

7.8 - 5.7 = 2.1

Answer:

1

5z + 6z = 11z

2

9y + -6y = 3y

3

ANSWER ( 11z + 3y)

Can anybody figure this out for me?

Answers

Answer:

h=6+(2t)

Step-by-step explanation:

h = 6+(2t) is the answer

Thank you for helping

Answers

Applying the inscribed angle theorem, we have:

9. B. m∠ABC = 70°

10. F. m∠Z = 54°

11. According to the two-tangent theorem, x is: D. 8 m

What is the Inscribed Angle Theorem?

An inscribed angle in a circle has a measure that is half of the measure of the intercepted arc, based on the inscribed angle theorem.

What is the Two-Tangent Theorem?

The two-tangent theorem states that if two tangents are drawn from a circle to meet at a point outside the circle, the two tangents are equal to each other.

9. Measure of arc AC = 360 - 120 - 100

Measure of arc AC = 140°

m∠ABC = 1/2(measure of arc AC) [inscribed angle theorem]

m∠ABC = 1/2(140)

m∠ABC = 70° [option B]

10. Arc XYZ = 2(m∠X) [inscribed angle theorem]

Arc XYZ = 2(126) = 252°

Arc WXY = 360 - arc XYZ

Arc WXY = 360 - 252

Arc WXY = 108°

m∠Z = 1/2(arc WXY) [inscribed angle theorem]

m∠Z = 1/2(108)

m∠Z = 54° [option F]

11. x = 10 - 2 [two-tangent theorem]

x = 8 m [option D]

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convert 10/6 to a mixed number and reduce the fraction

Answers

Answer:

1 2/3

Step-by-step explanation:

How much does 6 go into 10? Only 1 time so the whole number will be 1.

Next, subtract 6 from 10 and you get 4.

1 4/6 reduces to 1 2/3

Answer: 1 2/3 (pls give me brainiest not to be greedy but pls)

Step-by-step explanation:

A line segment has the endpoints F(2, -1) and G(-8, -1). Find the coordinates of its midpoint
M.
Write the coordinates as decimals or integers.
M=
Video

Answers

The coordinates of the midpoint of segment FG are (3,-1) which was found using midpoint formula.

How to find midpoints of a line segment?

When it comes to practical application, the midpoint formula is rather straightforward.

Step 1: Determine the line segment or the two ends.

Step 2: Determine their coordinates.

Step 3: Add the x coordinates of both ends and divide by 2.

Step 4: Adding the y coordinates of both endpoints, divide by 2, and complete the step.

Step 5: As you specify the coordinates of any point, write the values that were acquired in Steps 3 and 4.

Given: Endpoints of a line segment are F(2, -1) and G(-8, -1).

We need to find the coordinates of its midpoint.

Using midpoint formula,

(a,b) = (x₁ + x₂)/2,(y₁ + y₂)/2

       = (2-8)/2,(-1-1)/2

       = 3,-1

So, coordinates are (3,-1)

Therefore, the coordinates of the midpoint of segment FG are (3,-1) which was found using midpoint formula.

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A graduated cylinder has 7mL (cm³) of water placed in it. An irregularly shaped rock is then dropped in the graduated cylinder and the volume
of the rock and water in the cylinder now reads 9mL (cm³). The mass of the rock dropped into the graduated cylinder is 24 grams
Find the volume of the rock dropped into the graduated cylinder.
V=
Hint: Do not forget your units!!!
Find the density of the rock dropped into the graduated cylinder.
D-
Hint Do not forget your units!!!
Blank 1:
Blank 2:

Answers

well, we had a cylinder with 7mL of water, in the rock goes and kaboom the volume for the cylinder and its contents is 9 mL, well, the displaced water from the rock is equivalent to its volume, as Archimedes would properly point out, so since it was 7mL and now is 9mL well, the extra 2mL is the volume of the rock :).

sidenote:  Archimedes is Da Bomb!!!!

now, we know the rock weights 24 grams, and we also know its volume is 2mL, so its density is simply g/mL, or [tex]\cfrac{24g}{2mL}\implies 12~\frac{g}{mL}[/tex]

Need help ASAP please

Answers

Answer:

x=22

Step-by-step explanation:

5x+6+3x-2=180

8x+4=180

8x=176

x=22


Sarah received three fifths of her sister's book collection. If Sarah received 1
books, how many books did her sister have before giving any to Sarah?

Answers

i had the same question too, help anyone :/

Your friend is filling out a form that needs her height in all inches. She is 5 ft 8 inches tall. What is her height in inches? Conversion ratio: 1 ft = 12 in
A 60 in
B 68 in
C 13 in

Answers

b) 68 in


Convert feet to inches by multiplying by 12.

Add the inch value to the converted feet to get the height in inches.

Multiply the height in inches by 2.54 to get the height in centimeters.

Ezejiofor trekked 2 kilometer in 30minute. How many minute will it take him to trek 5 kilometer

Answers

Answer:it will take him roughly 75 minutes or an hour and 15 minutes:)

Step-by-step explanation:

so you take 2 and multiply it by the 30 minuets and then divide 30 by 2 so it will look like this

2x30=60(1 hour)

30÷2=15

now add 60 + 15 and you get

75

What i the ditance between (−1, 4) and (5, 4)?

Draw a line connecting the point. Thi i a
line. The point have the ame. To find the ditance, ue the expreion. The ditance between the point i
unit

Answers

The between two (-1, 4) and (5, 4) are separated by 6 units. It is a question of straight line.

(-1, 4) and are the coordinate provided (5, 4).
We are represent this with (x1, y1) and (x2, y2)
So
D^2= (x2-x1) ^2+(y2-y1) ^2
The are taken to be (x1, y1) and (x2,y2).here are (-1, 4) and (5, 4)
Here,
x1 = -1 and x2 = 5
y1 = 4 and y2 = 4Now after putting the value in formula we get the distance
= 6

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