Solve for c.
1 answer:
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Answer: B=27 m²
Step-by-step explanation:
Based on the information in the problem, if the volume V of a rectangular pyramid varies jointly as the area of the base B and the height h, you can write the following equation:
Where k is a constant.
You can calculate k as following:
When you solve for k you obtain:
Then, when V=81 m³ and h=9m m, B is:
Answer is 90 miles in 2 hours
Step by step
I like the cross multiply method for this. See attached picture with example.
We know she drove 30 miles / 40 minutes
We want to know “x” miles / 120 minutes ( equivalent of 2 hr)
Put into your equation
30/40 = x / 120
40x = 3600
X = 90 miles in 2 hours
Step by step
I like the cross multiply method for this. See attached picture with example.
We know she drove 30 miles / 40 minutes
We want to know “x” miles / 120 minutes ( equivalent of 2 hr)
Put into your equation
30/40 = x / 120
40x = 3600
X = 90 miles in 2 hours