3 years ago

Plzzzzzz help Solve the system by Substitution.

Mathematics

1 answer:

tankabanditka [31]3 years ago

4 0

Answer:

Both systems can be sloved by susbituding (1,2)

Step-by-step explanation:

(1)- x−4y=−7

Substitute in the x and y values: 1 - 4 (2) = -7

Multiply the numbers : 1 - 8 = -7

Calculate the difference: -7 = -7

(2) - −x+2y=3

Substitute in the x and y values: -1 + 2 (2) = 3

Multiply the numbers : -1 + 4 = 3

Calculate the sum: 3 = 3

You might be interested in

Question 17(Multiple Choice Worth 2 points)

AlexFokin [52]

Answer:
Your answer is 13.5 .

4 0

3 years ago

the dance team is selling shirts for 12$ each. the dance team made a total of 288$ with all of the tshirts they sold, which equa

vivado [14]

Answer:

Step-by-step explanation:

Divide 288 by 12

= 24

8 0

4 years ago

The equation below describes a parabola. If a is negative, which way does the parabola open? x = ay2

Anastasy [175]

This type of parabola opens either to the left or to the right. The negative makes it open to the left.

8 0

3 years ago

Read 2 more answers

A geometric series has second term

neonofarm [45]

Answer: 243/5 = 48.6

<u>Step-by-step explanation:</u>

a₁, 375, a₃, a₄, 81 , a₆

First, let's find the ratio (r). There are three multiple from 375 to 81.

$375r^3=81\\\\r^3=\dfrac{81}{375}\\\\\\r^3=\dfrac{27}{125}\qquad \leftarrow simplied\\\\\\\sqrt[3]{r^3} =\sqrt[3]{\dfrac{27}{125}}\\ \\\\r=\dfrac{3}{5}$

Next, let's find a₆ which is one multiple from 81.

$a_6=81\bigg(\dfrac{3}{5}\bigg)^1\\\\\\.\quad =\large\boxed{\dfrac{243}{5}}$

4 0

4 years ago

Help me plz!!!

Verdich [7]

The first blank is 3
the second blank is 5
therefore the same things cannot add up to 2 and 8 at the same time

4 0

3 years ago