Answer:
x = 3
Step-by-step explanation:
Two triangles are similar
x/(x+3) = 4/8 cross multiply expressions
8x = 4x + 12
8x - 4x = 12
4x = 12 divide both sides by 4
x = 3
Answer:
x = 0
Step-by-step explanation:
Since the product is not equal zero, we need to multiply both parenthesis first:
Add 27 from both sides:
Factor 
out:
Apply the zero product:
The solutions of the equation are 
and 
.
We can conclude that the correct answer is x = 0.
$5 per hour is the constant rate because 10/2 is 5, 20/4 is 5 etc.
Answer: -30r + 15
Step-by-step explanation:
first, we multiply the parenthesis by 20.
-20 x 1.5r + 20 x 0.75
then, we multiply/calculate.
-30r + 15
Answer:
Step-by-step explanation:
18/6=51/p
do cross multiplication
6*51=p*18
306/18=p
17=p
therefore perimeter is 17 cm
