Answer:
18 square units
Step-by-step explanation:
you multiply the base by the hight after graphing the square.
Answer: 42
Step-by-step explanation:
We know that because 40% percent of 70 equals 28. So we do the following-
70 minus 28 equals 42!
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Answer:
9
Step-by-step explanation:
substituting 2 for the x
y = 2(2) + 5
y = 4 + 5
y = 9
Answer:
13 in
Step-by-step explanation:
let w be width then length is w + 6
the area (A) of a rectangle is calculated as
A = length × width , then
A = w(w + 6) = 91 , that is
w² + 6w = 91 ( subtract 91 from both sides )
w² + 6w - 91 = 0 ← in standard quadratic form
(w + 13)(w - 7) = 0 ← in factored form
equate each factor to zero and solve for w
w + 13 = 0 ⇒ w = - 13
w - 7 = 0 ⇒ w = 7
however, w > 0 then w = 7
and length = w + 6 = 7 + 6 = 13 in
The percent decrease is 20%.
150 - 120 = 30
30 divided by 150 = 0.2
0.2 as a percent is 20
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