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3 years ago

How to solve this equation algebraically: Y=2x+1 3x+4y=26

1 answer:

3 0

You can substitute what y is into the second equation, so:
3x + 4(2x + 1) = 26
3x + 8x + 4 = 26
11x + 4 = 26
- 4
11x = 22
÷ 11
x = 2

y = (2 × 2) + 1
y = 5 + 1
y = 5

So you get x as 2 and y as 5, I hope this helps!

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A data set consists of these points: (2, 4), (4,7), (5, 12). malinda found the

WITCHER [35]

The complete question is

"A data set consists of the following data points: (2,4),(4,7), (5, 12)

The line of best fit has the equation y = 2.5x - 1.5. What does this equation predict for a value of x = 7?

O A. 16

O B. 19

O C. 20.5

O D. 175

0 0 0

a. no. both a and b are incorrect.

b. no. the value for b is incorrect.

c. no. the value for a is incorrect.

d. yes. this is the correct equation."

The equation predict for a value of x = 7 in equation y = 2.5x – 1.5 is (x, y) = (3, 16). Option B is correct.

<h3>What is a system of equations?</h3>

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

"A data set consists of the following data points: (2,4),(4,7), (5, 12)

y = 2.5x - 1.5

Puy x = 7

y = 2.5(7) - 1.5

y = 17.5 - 1.5

y = 16

The equation predict for a value of x = 7 in equation y = 2.5x – 1.5 is (x, y) = (3, 16). Option B is correct.

Learn more about equations here;

brainly.com/question/10413253

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4 0

2 years ago

What is the volume of the following rectangular prism?

tatiyna

Answer:

The answer is 220.5.

since there is a square in it you would multiply 5 1/4 * 5 1/4* 8

6 0

3 years ago

Whoever gets it right can have brainliest, but answer ASAP!

Scilla [17]

Answer:

$Hi!~I~am~beinggreat78,~and~I~will~help~you!$

Let's start by breaking down the problem.

This is how it should look. ↓

$60$ ÷ $20$ ⇒ $+ 3$ ⇒ $x * 5^2$

What does that <em>x</em> mean? <em>x</em> is just a substituted value for the first 2 equations.

Now, we can solve.

$60$ ÷ $20$ $= 3$

Add 3

$3 + 3 = 6$

Now, multiply 6 times 5 squared. What does 5 squared mean? 5 squared is just 5 times itself once. You most likely want to solve 5 squared before multiplying.

$5^2~or~5 * 5 = 25$