3 years ago

How do you determine which variable to substitute in for?

Mathematics

1 answer:

stira [4]3 years ago

7 0

Answer:

Substituting for a Variable

If you know the value that the variable is equal to, you can substitute that value in for the variable in the expression! Let's look at an example. Since we know that x=5, we can directly substitute or replace the x in the expression x+3 with a 5 to solve for y!

Step-by-step explanation:

I hope this kinda helps

You might be interested in

Find the distance between a and b. a = 9.21, b = –5.51

cricket20 [7]

9.21 - (-5.51)
9.21 + 5.51 = 14.72
The distance is 14.72

5 0

3 years ago

Read 2 more answers

Help!!! What’s x/3=-8

mixer [17]

Answer:

x = -24

Step-by-step explanation:

We gotta get rid of that 3 under x, so we multiply the reciprocal of 1/3, which is 3, if we multiply that on one side, we must also multiply on the other side.

3 · x/3 = -8 · 3

x = -24

Hope this helps! good luck on whatever you're doing :]

5 0

3 years ago

The shadow of a 5-foot tall post is 10 feet long. at the same time, a tree casts a shadow that is 22 feet long. what is the heig

FromTheMoon [43]

Because the shadow doubled, the tree is actually only 11 FEET TALL.

3 0

3 years ago

Read 2 more answers

Write an equation that models this situation