I hope this helps you
x^2-x-72=0
x -9
x +8
(x-9)(x+8)=0
x=9
x= -8
Step-by-step explanation:
Let the son's age be x and man be y
y=26+x
y=8+3x
x=9
Son's age is 9
Step-by-step explanation:
2x + 100 = 90
x = -5
Angle A = 45 - 5 = 40.
Answer:
Step-by-step explanation:
divide 20 by four
20/4=5/1
now 10 and 15 can both be divided by 5 since 5 is the greatest common factor
10/15=2/3
Answer:
112 tiles
Step-by-step explanation:
Area = 28ft sq
Tiles are 1/4 each sqft
We are working cube square inside cube ft square = 1 sq /4 (for multiplier).
= 4 x 28 = 112
112 x 0.25 = 28 to check.
112 x 0.25 x 4 = 112 is the multiplier to check again.
