All categories

2 years ago

Help me pleasee. Solve the system by substitution

Mathematics

1 answer:

saveliy_v [14]2 years ago

5 0

Answer:

(3, - 2 )

Step-by-step explanation:

Given the 2 equations

4x - 2y = 16 → (1)

y = - 5x + 13 → (2)

Substitute y = - 5x + 13 into (1)

4x - 2(- 5x + 13) = 16 ← distribute and simplify left side

4x + 10x - 26 = 16

14x - 26 = 16 ( add 26 to both sides )

14x = 42 ( divide both sides by 14 )

x = 3

Substitute x = 3 into (2) for corresponding value of y

y = - 5(3) + 13 = - 15 + 13 = - 2

solution is (3, - 2 )

You might be interested in

Ty very much! Please help? :))

wlad13 [49]

Answer:

Exact Form: 

$\frac{8}{3}$

Decimal Form:

$2.6$

Mixed Number Form:

$2\frac{2}{3}$

Hope this helps :)

-ilovejiminssi♡

4 0

2 years ago

Use long division to change 11/30 to a decimal

Angelina_Jolie [31]

Hope this helps! answer= 0.366 to 3 decimal places

4 0

2 years ago

Read 2 more answers

What is 3√243 expressed in simplest radical form?

Volgvan

Answer:

H is correct

Step-by-step explanation:

(243)^1/3

(3^3 × 3^2)^(1/3)

(3^3)^1/3 × (3^2)^1/3

3×(9)^1/3

3 0

2 years ago

A survey asked only girls to identify their favorite item on the

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

A biased sample is a sample that does not accurately represent the population.

The survey asked only girls, but we can assume this school has both boys and girls. Therefore, by only asking girls, it creates a bias, because the boys in the school are not represented.

Therefore, the correct choice is B: biased sample.

6 0

2 years ago

Explain how to estimate the quotient using compatible numbers.plz help fast

Nadya [2.5K]

<h2>PLEASE MARK BRAINLIEST!</h2>

Answer:

To estimate the quotient, make the fractions "like" fractions. To do this, you need to make the fractions have the same denominator, and turn them into improper fractions.

Step-by-step explanation:

$27\frac{2}{3} = 27 \frac{20}{30}$