Answers
Answer: x = -1
Step-by-step explanation: Insert all the numbers into x, and when you insert -1 to x, you get 40.
Answer:
x = - 1
Step-by-step explanation:
Given
- 4(3x - 7) = 40 ( divide both sides by - 4 )
3x - 7 = - 10 ( add 7 to both sides )
3x = - 3 ( divide both sides by 3 )
x = - 1
Related Questions
(a) Omar changed 800 rands into dollars when the rate was $1 = 6.25 rands.
(i)
How many dollars did Omar receive?
Answers
Answer:$128
Step-by-step explanation:
If $1=6.25 rands then we must divide 800 by 6.25
Please help its my last question and I really need to submit this right about now. I’m not sure what the answer is and how I do it
Answers
Answer:
I legit answered this its 6/10
Edit: y = -6/10x + 100
Step-by-step explanation:
Change in y over change in x
60/100
6/10
I need help
9/2 x 1/4
Answers
Answer:
1 1/8
Step-by-step explanation:
Answer:
1 1/8
Step-by-step explanation:
Please help, solve for x?
Answers
Answer:
x = 3
Step-by-step explanation:
24 = 9x -3
(add 3)
27 = 9x
(÷9)
x = 3
Answer:
x = 3
Step-by-step explanation:
Assuming QTSR is a parallelogram, then segment QT is of equal length to segment SR. Solve for x by writing the equation 9x - 3 = 24
Algebra question on matrices. Please help!!
Solve the system of equations below using matrices.
Answers
Answer:
(16,-6) is the answer
I have tried this for almost 20 mins
, I might give up soon
Answers
Answer:
x=1
y=3
z=-2
Step-by-step explanation:
Use substitution to solve two systems and then the third.
brainliest promised. very easy. 6th grade stuff
Answers
Answer:
the answer is b
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
Divide 288 by 6.
(288 points)/(6 games ) =
To simplify the fraction, divide the numerator and denominator by 6.
= 48 points/game
Answer: B.
what is the slope- intercept form of 4x+5y=20
Answers
Answer:
y = -4/5x + 4
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesAlgebra I
Standard Form: Ax + By = C
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
Standard Form: 4x + 5y = 20
Step 2: Rewrite
Subtract 4x on both sides: 5y = 20 - 4xDivide 5 on both sides: y = 4 - 4/5xRearrange: y = -4/5x + 4x-4y=-12
what is this supposed to equal
Answers
Answer: X- 4y - 12=0
step by step explanation:
First, move the constant to the left by adding its opposite to both sides
x-4y -12 = 12-12 =
X-4y-12 = 0
So the answer is X- 4y - 12=0
Help me please ????????????
Answers
Answer:
7 Calories
Step-by-step explanation:
Every 15 minutes Marcy burns 105 calories.
105:15
105/15
Which table represents a quadratic function?
.
2
f(x)
6
f(x)
-9
f(x)
-5
-3
Sx)
0.25
-2.
-1
1-2
-2
-1
3
-1
-4.5
0 | |N| دي |
-2
-1
0
0.5
1
o
0
-1
0
1
1
1
No
4.5
1
2
2
4
N
0|
2
3
9
o
o
o
Answers
Answer:
C
1/3y - 7/5×+ 2/3-2/3 y- 4/9
Courtney is building a rectangular wading pool. she wants the area of the bottom to be 54 ft square feet. she also wants the length of the pool to be 3 feet longer than twice the width. what are the dimensions of the pool?
Answers
Your welcome
2) The spinner was spun 60 times. On 20 out of 60 times, the arrow landed on a blue section. What is the experimental probability of landing on a section that is blue?
Answers
bc 20/60 simplified is 1/3
Can you help me solve x it would help me a lot thanks
Answers
Math Problem! please help!
Answers
sandy is cutting bows out of ribbon which will be used to rap gifts. If sandy need 9/7 feet of ribbon to make a bow and she has 18 feet of ribbon then how many bows can sandy make.
Answers
Find the value of X in this picture
Answers
Answer:
x = 120 degrees
Step-by-step explanation:
a hexagon has a total of 720 degrees
720- 130-140-150-90-90= 120
Rate my looks from 1/10 and pls dont judge me i woke up early and got no sleep last night plss
Answers
Answer:
10 million out of 10
Step-by-step explanation:
Answer:
30 thousand/10
Step-by-step explanation:
i wish i looked that good without sleep! XD
Which row of Pascal’s triangle would you use to expand (2x + 10y)15? row 10 row 12 row 15 row 25
Answers
Answer:
Row 15 is correct
Step-by-step explanation:
Pascal's triangle:
1 n = 0 , Row = 0
1 1 n = 1 , Row = 1
1 2 1 n = 2 , Row = 2
:
.........
.......
For n = 0, Row number 1
For n = 1, Row number 2
For n = 2, Row number 3
We make pascal's triangle but sum of above two number, write below.
As we can see in pascal's triangle.
Exponent represent the number of row.
If binomial has exponent n then nth row of pascal's triangle use.
For
Here power is 15
So, we have to use 15 row of pascal's triangle.
Hence, Row 15 is correct
Answer:
the second part is 16
Step-by-step explanation:
Amber is designing cylindrical containers that are each 2 meters tall. Which graph
shows the relationship between the radius (x) of each cylinder and its volume (/)?
Answers
Answer:
Step-by-step explanation:
Answer:
Look at pik...........................................
Label the endpoints to round 21.897 to the nearest hundredth
Answers
Answer:
21.90
Step-by-step explanation:
Hope it helps!
A circle has a diameter of 4.8 cm. Find, rounded to 2 decimal places, its area and perimeter
Answers
Answer: Perimeter → 15.07964474
Area→ 18.09557368
In an aquiarium, there are 7 large fish and 6 small fish. Half of the small fish are red. One fish is selected at random. Find the probability that it is a small, red fish.
Answers
Answer:It's looking for square feet so it wasn't the area. The area is o
Step-by-step explanation:
n is an integer.
Write down the values of n such that -8 ≤ 4n < 12
Answers
Answer: -2; -1; 0; 1; 2
[tex]-8\leq 4n<12\\\\=> -2\leq n<3[/tex]
because n is an integer => n ∈ {-2; -1; 0; 1; 2}
Step-by-step explanation:
Answer is : n ={-2; -1; 0; 1; 2}
What is number?A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words.
here, we have,
given that,
-8 ≤ 4n < 12
=> -2≤ n <3
because, n is an integer => n ∈ {-2; -1; 0; 1; 2}
Hence, Answer is : n ={-2; -1; 0; 1; 2}.
To learn more on number click:
brainly.com/question/17429689
#SPJ2
Lily sold 18 items at the street fair. She sold bracelets for $6 each and necklaces for $5 each for a total of $101. Which system of equations can be used to find b, the number of bracelets she sold, and n, the number of necklaces she sold?
b + n = 101
6b + 5n = 18
b + n = 101
5b + 6n = 18
b + n = 18
6b + 5n = 101
b + n = 18
5b + 6n = 101
Answers
Answer:
6b + 5n = 101
Step-by-step explanation:
I hope this helps!
Answer:
6b+5n = 101 because if you look at each equation and back at the question you’ll understand that it’s asking for 6 bracelets plus 5 necklaces for a total of 101 dollars... hope this helped...and I need brainliest thx
Step-by-step explanation:
I neeed helppp please
Answers
Answer:
answer is 50
Step-by-step explanation:
x =180-(65+65)
x=180-130
x=50
Michael started a savings account with $300. After 4 weeks, he had $350 dollars, and after 9 weeks, he had $400. What is the rate of
change of money in his savings account per week?
Person to answer get prize
Pls help
Answers
Answer:
$12.5
Step-by-step explanation:
all you do is divide the 4 weeks to the $50 he earns and get $12.5 every week.
A 6-pint jug of water costs $3.84. What is the price per cup?
Answers
1 pint = 2 cups, so 6 pints would be 6 x 2 = 12 cups.
Price per cup = 3.84/12 = 0.32
$0.32 per cup
'SOMEBODY PLEASE HELP I WILL GIVE YOU A BRAINLIEST
PROP/CONSTANT
A factory makes 36 cookies in 12 mins. How many cookies can they make in ONE minute?
6 cookies
4 cookies
3 cookies
2. A bathtub leaks 1/2 cup of water every 1/4 minute. How many cups of water leak every minute?
3 1/2 cups
1 cup
2 cups
3. 5 glazed donut has 750 calories altogether. How many calories are in TWO donuts?
300 calories
150 calories
450 calories
4. A cell phone company charges $70 for 2 months of service, and $210 for 6 months of service. What is the constant rate (per month) for the service?
$40 per month
$35 per month
$55 per month
5. Which is the formula to find the constant of a chart?
k = y/x
y = kx
x = k/y
6. A chart is not considered proportional if...
the chart has too many large numbers
the x values are bigger than the y values
if the y values are bigger than the x values
if there is no constant (k)
Use the chart below for questions 7 and 8
7. Is the chart above proportional?
Yes
No
8. Determine the constant(k) of the chart.
k = .75
k = 1.75
k = 2.15
Doesn't have a constant
Use the chart below to answer questions 9 - 12.
9. Is the chart above proportional?
8 points
Yes
No
10. Determine the constant(k) of the chart?
10 points
k = 5
k = 4
k = .25
11. Which formula satisfies an equation for Y.
y = 4x
y = .25x
y = 5x
12. Find the value of y when x is 49.
12.25
196
80
18
Answers
Answer:
1. 3 cookies
2. 2 cups
3. 300 calories
4. $35 per month
5. k = y/x
6. If there is no constant (k)
Step-by-step explanation:
1. The number of cookies the factory makes in one minute = (The number of cookies the factory makes in 12 minutes)/(12 minutes)
∴ The number of cookies the factory makes in one minute = 36 cookies/(12 minutes) = 3 cookies/minute
The correct answer is 3 cookies
2. The number of cups of water that leak every minute = (The number of cups of water that leak in 1/4 minute) × (The number of 1/4 minute per minute)
The number of cups of water that leak every minute = 1/2 cup per 1/4 minute × 4_1/4 minute per minute
The number of cups of water that leak every minute = 1/2 × 4 = 2
The number of cups of water that leak every minute = 2 cups
3. 5 glazed donuts contains 750 calories
∴ 1 glazed donuts contains 750/5 = 150 calories
2 = 2 × 1 glazed donuts will contain 2 × 150 = 300 calories
4. The charge of the cell phone company for 2 months = $70
The charge of the cell phone company for 6 months = $210
The constant rate per month = The rate of change of the cell phones companys charges
∴ The constant rate per month = (210 - 70)/(6 - 2) = 140/4 = 35
The constant rate (per month) for the service = $35 per month
5. The formula to find the constant of a chart, k = y/x
6. A chart is not considered proportional if there is no constant (k)
Kate has an interior decorating business. She charges a base fee of $25 for each visit and $40 per hour for her labor. 1) Write a function rule to represent this situation for, C, the total cost and h number of hours. 2) Identify the domain and range for the situation. 3) Explain if the situation is discrete or continuous. (if there is no explanation, there will be no credit given) PLEASE I NEED FAST ILL GIVE BRAINLIEST
Answers
Answer:
1) C = $25 + $40 × h
2) The domain for the ≠unction is 0 ≤ h ≤ ∞
The range for the function is 25 ≤ C ≤ ∞
3) Continuous
Step-by-step explanation:
1) The given parameters are;
The base fee charged = $25
The amount charged for labor = $40/hour
The total cost for h number of hours is C = $25 + $40 × h
2) The domain for the ≠unction is 0 ≤ h ≤ ∞
The range for the function is 25 ≤ C ≤ ∞
3) The situation is continuous because the different input values of h can be infinite (from o to infinity)