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Answer:
Step-by-step explanation:
The answer is 3.27
Percentage change is 100% increase.
Step-by-step explanation:
- Step 1: Find volume of cylinder A using equation, V(A) = πr²h, where r = 7 in and h = 5 in
⇒ V(A) = π × 7 × 7 × 5 = 245π
and V(B) = 490π
- Step 2: Calculate percentage change from V(A) to V(B)
⇒ % change = [V(B) - V(A)/V(A)] × 100 = (490π - 245π/245π) × 100
= 245π/245π × 100 = 100% increase
30 - 25.94 = 4.06
4.06 / 0.14 = 29
Linda's call was 29 minutes long.
Answer:
x = 9
Step-by-step explanation:
The triangle is split into two similar triangles. They have the same shape but not the same size. To solve, write a proportion.

Cross multiply to solve for x.
9(3x+36) = 81(3x-20)
27x + 324 = 243x -1,620
1,944 = 216x
9 = x