20% of 89.75 is 17.95
so :
the Trina's coupon will subtract the answer by 10%:
10%of 71.8 is 7.18
so the final answer is:
she has to pay $64.62
hope this helps
5x7= 35
35> (greater than) 8
Answer:
They need 2 and 1/2 rolls.
Step-by-step explanation:
Area = length x width
A = l x w
A = 20 x 3
A = 60 ft²
If 60 ft² = 1 roll
What about 150 ft² = ?
= (150 x 1) ÷ 60
= 150 ÷ 60
= 2.5
= 2 and 1/2 rolls
For this case we can make use of the Pythagorean theorem.
We have then:
(root (117)) ^ 2 = x ^ 2 + 6 ^ 2
Clearing x we have:
x ^ 2 = (root (117)) ^ 2 - 6 ^ 2
Rewriting:
x = root (117-36)
x = root (81)
x = 9
Answer:
The value of x is given by:
x = 9 cm
Algebraic expression: 100 = 25 + n
Answer: n = 75
