Answer:
Julio's number is 212
Step-by-step explanation:
(x - 12) ÷ -5 = -40
x - 12 = -40 times -5
x - 12 = 200
x = 200 + 12
x = 212
Check:
(x - 12) ÷ -5 = -40
((212 - 12)) ÷ -5 = -40
200 ÷ -5 = -40
-40 = -40
Anita can clean 1/8 portion of the pool in 1 hour
Chao can clean 1/6 portion of the pool in 1 hour
Both of them working together can clean 1/8 + 1/6 = 7/24 portion of the pool in 1 hour
Therefore, it will take both of the working together 1/(7/24) = 24/7 or 3 3/7 hours to clean a typical pool.
22 - 5(6v - 1) = -63 First, you distribute 5 to the parentheses.
22 - 30v + 5 = -63
27 - 30v = -63
-30v = -90
v = 3
Answer:
0.20
Step-by-step explanation:
Surface area is defined as the sum of all the areas covers the object so here we have 2 cylinders and the
Area of a cylinder = side area + area of the circle
side area = <span>perimeter * height = 2*pi* r *h
</span>area of the circle = pi * r^2
for the cylinder, we have 2 area circle and 1 side area
so surface area = 2 *pi * r*h + 2 pi* r^2
so for the first cylinder
A1 = 2*pi*r*h +2 pi * r^2 = (2*pi * 2 *2) +( 2 *pi * 2^2 ) = 16pi inch^2
A2 = 2*pi*r*h + 2pi *r^2 = ( 2 * pi * 1.25*3)+( 2*pi *(1.25)^2) = 85/8 pi inch^2
A= A1 +A2
A = 16pi + 85/8 pi = 83.645 inch^2
