All categories

3 years ago

I need x+y=5 and y=2x-4solved algebraically

Mathematics

2 answers:

ipn [44]3 years ago

7 0

X=3, y=2 solved algebraicly

schepotkina [342]3 years ago

4 0

Answer:

x = 3; y = 2

Step-by-step explanation:

x + y = 5

y = 2x - 4

Isolate the y in the first equation

y = 5 - x

y = 2x - 4

Substitute the values

5 - x = 2x - 4

Isolate the Variable

9 = 3x

Simplify

3 = x

Plug that into the first equation

3 + y = 5

Subtract 3 from both sides

y = 2

You might be interested in

The relationship (3,2)(2,5) (8,5) (3,6) is a function A True B) False

Katyanochek1 [597]

The answer is true

Hope this helped!

7 0

2 years ago

In how many ways we can test wether ratios from a proportion ?

Sphinxa [80]

From what I learnt so far, there are 3 possible ways of finding whether ratios form a proportion

5 0

3 years ago

Write the digits that make each equation true

igomit [66]

What equation I don't see one here

6 0

3 years ago

Which expression is equivalent to -4 (2m - 3 ) - (m+2) -9m+10 9m+10 7m+10 -7m+10

Scrat [10]

Answer:

4 - 2m + 3

Step-by-step explanation:

when you distribute the negative sign you will get this

8 0

3 years ago

Read 2 more answers

A park is mapped on a coordinate plane, where C1, C2, C3, and C4 represent chairs and SW1, SW2, and SW3 represent swings. How fa

serg [7]

Answer:

Option (B)

Step-by-step explanation:

To calculate the distance between C2 and SW1 we will use the formula of distance between two points $(x_1,y_1)$ and $(x_2,y_2)$ .

d = $\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^2 }$

Coordinates representing positions of C2 and SW1 are (2, 2) and (-6, -7) respectively.

By substituting these coordinates in the formula,

Distance between these points = $\sqrt{(-6-2)^2+(-7-2)^2}$

= $\sqrt{(64)+(81)}$

= $\sqrt{145}$ units

Therefore, Option (B) will be the correct option.

5 0

3 years ago

Read 2 more answers