Answer:
2(8a + 8)
Step-by-step explanation:
The easiest way to do this is to substitute <em>a</em> for a number. For example, let's just make things easy and make <em>a </em> = 1.
So, if a = 1, the expression 16a + 8 would be 16(1) + 8 = 24.
Let's find all the expressions that would also equal 24 if <em>a = </em>24.
Plug in 1 for <em>a</em> in each of the equations. You will find that 2(8a + 8) will not equal 24 if <em>a </em>equals 1.
2(8a + 8)
2(8(1) + 8
2(8 + 8)
2(16)
32
Answer:
14, 96,84
Step-by-step explanation:
8n - 16 + 6n = 180 {Supplementary angles}
<u>8n + 6n</u> -16 = 180
Combine like terms
14n - 16 = 180
Add 16 to both sides
14n = 180 + 16
14n = 196
Divide both sides by 14
n = 196/14
n = 14
8n - 16 = 8*14 - 16 = 112 - 16 = 96
6n = 6 *14 = 84
Answer:
4 m.
Step-by-step explanation:
Length of ladder, L = 4.50 m
Base of ladder from the wall, B = x
Height of the wall, H = 2x
Using Pythagoras theorem
Height of the wall is equal to 2 x 2 = 4 m.
Answer:
x
-- = y
25
Step-by-step explanation:
Because it is 25% off, x is divided by 25 to get the price.
For example if x was 100, divide it by 25 you get 75, which is y.
