Answer:
9.2/5= C
Step-by-step explanation:
7.2- 3C = 2C -2 First, add the 2 on the other side to isolate 2C on one side
+2 +2
9.2 - 3C = 2C Next, add 3C to the other side
+3C +3C
9.2 = 5C Finally divide both sides by 5 to find the value of C
9.2/5= 5C/5
9.2/5 = C by dividing by 5 the 5 cancels out and you're left with the C value
When estimating, compatible numbers are numbers that are close in value to the actual numbers, and which make it easy to do mental arithmetic.
surface area of cylinder = 2 π r h + 2π r²
plug in values of pi, radius and area
2,461.76 = 2× 3.14 × 14 × h + 2× 3.14 × 14 × 14
2,461.76 = 87.92 h + 1,230.88
2,461.76 – 1,230.88 = 87.92h
1,230.88 = 87.92h
1,230.88 ÷ 87.92 = h
h = 14 ft
