The system of equations can be solved using linear combination to eliminate one of the variables.

2x − y = −4 → 10x − 5y = −20
3x + 5y = 59 → 3x + 5y = 59
13x = 39
Which equation can replace 3x + 5y = 59 in the original system and still produce the same solution?

2x – y = –4
10x – 5y = –20
7x = 39
13x = 39

Answers

Answer 1

Answer:

D

Step-by-step explanation:


Related Questions

What is a slope, because i don't know

Answers

Answer:

The slope of a line is a measure of its steepness. In math, slope is calculated as "rise over run" (change in y divided by change in x).

The figure shows three right triangles. Triangles PQS, QRS, and PRQ are similar. Theorem: If two triangles are similar, the corresponding sides are in proportion. Figure shows triangle PQR with right angle at Q. Segment PQ is 4 and segment QR is 9. Point S is on segment PR and angles QSP a Using the given theorem, which two statements help to prove that if segment PR is x, then x2 = 97? (1 point) Segment PR ⋅ segment PS = 16 Segment PR ⋅ segment SR = 36 Segment PR ⋅ segment PS = 36 Segment PR ⋅ segment SR = 81 Segment PR ⋅ segment PS = 16 Segment PR ⋅ segment SR = 81 Segment PR ⋅ segment PS = 81 Segment PR ⋅ segment SR = 16

Answers

The two statements that help to prove that if segment PR is x, then x² = 97 are:

Segment PR • segment SR = 81Segment PR • segment SR = 16

What is a segment?

A line segment is a piece or part of a line having two endpoints.

Here, the statements that help to prove that if segment PR is x, then x² = 97 are Segment PR • segment SR = 81 and that Segment PR • segment SR = 16.

Learn more about a segment on:

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Please answer all of these

Answers

Answer:

I am not certain but

Step-by-step explanation:

4. y=-6x-48

5.-7 and 4

thoes are the only ones I know but good luck

what is the answer of this 4:3=a:6

Answers

Answer:

a = 8

Step-by-step explanation:

4 : 3 = a : 6

[tex]\frac{4}{3} = \frac{a}{6}[/tex]

Cross multiply

4*6 = a * 3

[tex]\frac{4*6}{3}=a[/tex]

a = 4 * 2

a = 8

0 of 1
Does the equation 94=1227
9
4
=
12
27
represent a proportional relationship? Why or why not?

Select the option that correctly answers both questions.

Yes, it is proportional because 94=1227.
9
4
=
12
27
.
No, it is not proportional because 94≠1227.
9
4

12
27
.
Yes, it is proportional because 94≠1227.
9
4

12
27
.
No, it is not proportional because 94=1227.

Answers

Answer:

its 9 4 = 12 27

Step-by-step explanation:

What is the value of f(g(3))

Answers

Answer:

A

Step-by-step explanation:

f(g(3)= f(g(x=3)) = f([tex]\frac{3+1}{3-1}[/tex]) = f(4/2) = f(2) = f(x=2) = 3*2-7 = 6-7 = -1

Answer:

Step-by-step explanation:

A . It is the correct answer

What is the value of P(S and T)?

A.

B.

C.

D

Answers

Answer:

0.25 but I am not sure umm I think

HELPPP ME!!! ASAP
PLZZZZZZZZZZ

Answers

ANSWER:i think its C

Step-by-step explanation:

Find the area of the trapezoidal shown

Answers

Answer:

may you show us the pic so we can help?

Step-by-step explanation:

This exact same question has been asked a few times, but I’m finding several different answers. Could someone please clarify.

Thank you in advance.

Answers

Answer:

The last one (D)

Step-by-step explanation:

Jonathan would have to check how much he's paid off after each of the months which means he would need to subtract that from total amount of money that he's pay for the new computer

The correct answer is D) Y= 1,728-96x

I need a tutor or someone that’s willing to help ... but can someone pls answer

Answers

Answer:

1/2

Step-by-step explanation:

Answer:

Your slope is 1/2

Step-by-step explanation:

Slope is rise over run or m=rise/run rise being the Y value and X being the run value. You can count the grid on the graph provided.

rise= 1

run= 2

4x-3(x+4)=7 i need to know this i need help with this.

Answers

Answer:

x=19

Step-by-step explanation:

4x-3x-12=7

x-12=7

x=7+12

x=19

Answer:

x=19

Step-by-step explanation:

first you would distribute the -3 to the x and the 4 which would give you

4x-3x-12=7

next you would combine like terms (there's always an invisible 1 one front of a variable)

x-12=7

then to get the variable by itself you would add 12 on each side

x=19

hope this helped :)

Water flows through a pipe at a rate of 2 fluid ounces per second. Express this rate of flow in quarts per minute.

Answers

Answer:

Step-by-step explanation:

3.75

Water flows through a pipe at a rate of 3.75 fluid quarts per minute.

What is multiplication?

Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.

Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.

Given:

Water flows through a pipe at a rate of 2 fluid ounces per second.

2 ounces = 0.0625 quarts

And 1 second = 0.0166667 minutes

So, water flows through a pipe at a rate of 0.0625 quarts per 0.0166667 minutes.

Water flows through a pipe at a rate of 3.75 fluid quarts per minute.

Therefore, the rate is  3.75 fluid quarts per minute.

To learn more about the multiplication;

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Evaluate 8+3e when e = 2

Answers

Answer: 14

Step-by-step explanation: bru is simple

Answer:

8+3e=8+3(2)=8+6=14. aswer is 14

hope this helps u plz give me the brainliest pplzz

ANSWER THE QUESTION PLEASE & THANK YOU ! Show that the equation y +2 = 2(3x + 1) is linear and that it represents a proportional relationship
between x and y.
Part 1 out of 4
y +2=2(3x + 1)
y +2=
JX +
✓ Check
Next

Answers

Answer:

y+2=6x+2

Step-by-step explanation:

[tex]y+2=2(3x+1)\\y+2=6x+2\\y=6x+2-2\\y=6x[/tex]

Since the exponent/degree of x and y both the variables are 1 the equation is linear and y=6x represents a proportional relationship between x and y

Find the ratio a:b if it is given that ... a+3b/5=a-2b/2. HELP RIGHT NOW PLS

Answers

By simplifying the given equation, we can see that the ratio a:b is:

8:1

How to find the ratio a:b?

We start with the equation:

(a + 3b)/5 = (a - 2b)/2

The first thing we need to isolate each variable in one side of the equation.

(a + 3b)/5 = (a - 2b)/2

2*(a + 3b) = 5*(a - 2b)

2a + 6b = 5a - 10b

6b + 10b = 5a - 2a

16b = 2a

So, 16 times b is equal to 2a

We can write this as:

b/2 = a/16

b = a/8

Then the ratio a to b is:

8:1

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A basketball player made 77 out of 100 attempted free throws. What percentage of free throws was made?
The player made____% of the free throws attempted.

Answers

Answer:

77%

Step-by-step explanation:

the anwser would be 77% of the throws were made

What is the slope of the line whose equation is y-4={(x-2)?
у
-6
5
4
(2,4)
8
N
х
5 -5 -4 -3 -2 -21
2 3 4 5 6
(0, -1)
1

Answers

Answer:

1

Step-by-step explanation:

coefficient if x term is 1

Topic: coordinate geometry

If you like to venture further, do check out my insta (learntionary) where I constantly post math tips! Thanks!

The slope of the line whose equation is y - 4 = (x - 2) is,

⇒ m = 1

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

Equation of line is,

⇒ y - 4 = x - 2

Now, We can simplify for slope as;

⇒ y - 4 = x - 2

⇒ y = x + 2

⇒ dy/dx = 1

⇒ m = 1

Thus, The slope of the line whose equation is y - 4 = (x - 2) is,

⇒ m = 1

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Liam had a container of oatmeal that contained 5 and one-half cups of oatmeal. Liam ate StartFraction 4 over 9 EndFraction cups of oatmeal every morning before school for a week. Which is the best estimate of the number of cups of oatmeal that Liam had left in the container at the end of the five-day week?
A.2 1/2
B.3
C.3 1/2
D.5

Answers

Answer: B or 3

Step-by-step explanation:

had this question on my quiz

Use the digit 5, 7, and 2 to write four numbers that are greater than 400.​

Answers

Answer:

All the possible numbers:

257275527572725752

numbers greater than 400:

527572725752

your answers : 527, 572, 725, 752

mrk as brainleist ☺️

Given John's data collection method and findings, what conclusion can be made?
OA.
Only the claim for vehicle B is true because more people agree with their claim.
OB. Neither of the claims are correct.
Ос.
Both SUV manufacturers' claims are true, but the turning radius of vehicle B is sharper than the turning radius of vehicle A.
Only the claim for vehicle A is true because 11 out of 15 people agree with their claim.
OD

Answers

Answer:

b

Step-by-step explanation:

edg2020

OB Neither of the claims are correct

HELP ME OUT REAL QUICKKKKKKKKKKKKK

Answers

The answer should be 7/8
The answer is b 7/8 good luck

Mr. Reed has 114 students. He gives each student ¼ pound of candy in their Halloween bag. How many pounds of candy does he need to buy?

Answers

Answer:

hewo

Step-by-step explanation:

well you need to multiply 1/4*114 and that should give you your answer

which would be 28.5

A man is lying on the beach, flying a kite. He holds the end of the kite string at ground level and estimates the angle of elevation of the kite to be 55°. If the string is 350 ft long, how high is the kite above the ground? (Round your answer to the nearest foot.)

Answers

The kite is approximately 345 feet above the ground.

The height of the kite above the ground is 287 ft

The length of the string, the height of the kite (h) above ground and the perpendicular distance from the end of the kite string to the man forms a right angled triangle.

Trigonometric shows the relationship between the lengths and angles of a right angled triangle.

Therefore using trigonometric ratios:

sin(55) = h / 350

h = 287 ft

Therefore the height of the kite above the ground is 287 ft.

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The total amount y (in dollars) in your savings account after buying x video games is represented by y= 90-10x. You have $40 in your account after buying video games. How many video games did you buy?

Answers

5 video games bought.

Explanation:

Step one) identify all variables.

> y = money in bank acc AFTER buying (x) video games.

Step two) y = $40

Step three) substitute

> 40 = 90 - 10x.

Step Four) solve for x

> subtract 90 both sides.

-50 = -10x

DIVIDE by -10 on both sides ( to isolated x)

This equals 5 = x

x is number of video games bought meaning >> 5 video games bought

*sings body by Megan Thee Stallion*

Please help me I need to get this right

Answers

Answer:

try the second one on top

Step-by-step explanation:

A good general rule for this course is to be organized, set a study schedule, and review your work.
True
False

Answers

Answer:

True

Step-by-step explanation:

Being organized, having a study schedule and reviewing your work are all great habits to becoming a well-rounded student and generally succeeding in a course.

Please rate 5 stars and/or say thanks if I was able to help!

Have a good day!

~Roi

Find the image of (8,0) after a rotation of 90° about the origin.

Answers

Answer:

(0,8)

Step-by-step explanation:

this is my guess because 90° would move it from axis to axis, switching the x & y numbers. i could be wrong though & my appologies if i am incorrect

Evaluate the integral using the indicated trigonometric substitution. sqrt(x2 − 81)/x dx, x = 9 sec()

Answers

Answer:

C

=

C

'

81

2

ln

9

Step-by-step explanation:

How many groups of 2/3 are in 3/5 a 915 B 9/10 C 1 1/3 D 1 1/9

Answers

Answer:

aaa

Step-by-step explanation:

35istohhhaaa bla bla nla

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