3 years ago

How do you do this ?

1 answer:

8 0

You find the variable x or y in one of the lines of the problem and then substitute the value of the variable you first found into the other line of the problem to find the other variable. Then, you plug all of the values you found into either line/equation of the problem to ensure that one side of the equation you pick is equal to what is on the other side of the "=" symbol.

You might be interested in

What is “One third of the opposite of a number is less than 12?”

nirvana33 [79]

Answer:

$\frac{1}{3}(-x)$ <12

4 0

3 years ago

Multiply (4x-3w)(5x-7w)

andre [41]

Answer:

20x² - 43xw + 21w²

Step-by-step explanation:

We use FOIL to expand the expression:

F - First

4x(5x) = 20x²

O - Outside

4x(-7w) = -28xw

I - Inside

-3w(5x) = -15xw

L - Last

-3w(-7w) = 21w²

20x² - 28xw - 15xw + 21w²

Combine like terms and add up using correct signs and you should get your answer.

3 0

3 years ago

Read 2 more answers

PLEASEEE HELP ME I NEED HELP REAL BAD ON THIS PROBLEM A MILLION THANKS IF YOU HELP ME!!**NO LINKS**THANK YOU SOOOO MUCH!! =D

Sav [38]

Answer:

hmmmmmm look on Firefox

8 0

3 years ago

Isabel needs to cut a square piece of wood with the area of 70 in.² approximate the size of the square and round to the nearest

Alla [95]

Answer: 8.4 inch

Step-by-step explanation:

To find the size of the square, just find the square root of 70. Because the area of a square is the side length squared

$\sqrt{70}$ = 8.3666 rounded to the nearest 10th is 8.4 inch

5 0

3 years ago

What is the solution to the equation 2x + 4 = 23x?

Cerrena [4.2K]

Answer:

x=4/21

Step-by-step explanation:

2x+4=23x

-2x -2x

4=21x

4/21=x

5 0

3 years ago