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3 years ago

How meny cubic feet of water will fill a rectangular pool that is 50 feet wide, 75 feet long, and 8 feet deep?

1 answer:

6 0

Answer: 30,000 cubic feet

Explanation:
to find how many cubic feet, you are finding the volume of the pool.
so the equation for volume is v = l • w • h.
50 • 75 • 8 = 30,000.

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Surface area of a cube

Lynna [10]

Answer:

i think think a square would have 6 as a surface area

Step-by-step explanation:

soryr if im wrong

3 0

3 years ago

Isabelle, who is 62 inches tall, is standing beside a tree and casts a 93 inch shadow on the ground. The shadow of the tree she

Illusion [34]

Given:

Height of Isabelle = 62 inches

Shadow of Isabelle = 93 inches

Shadow of tree = 279 inches

To find:

The height of the tree.

Solution:

Let height of tree be x.

Ratio of height to shadow for Isabelle and tree are

$\dfrac{\text{Height of Isabelle}}{\text{Shadow of Isabelle}}=\dfrac{62}{93}$

$\dfrac{\text{Height of tree}}{\text{Shadow of tree}}=\dfrac{x}{279}$

The shadow of Isabelle and tree are proportional to their shadows. So, both ratios must be equal.

$\dfrac{x}{279}=\dfrac{62}{93}$

Multiply both sides by 279.

$x=\dfrac{62}{93}\times 279$

$x=62\times 3$

$x=186$

Therefore, the height of tree is 186 inches.

8 0

4 years ago

A sphere has a volume of 1,436 in3. What is its radius?

Gwar [14]

Answer:

do the reverse of pie r squared

Step-by-step explanation:

4 0

3 years ago

The admission fee at the fair is $1.50 for children and $4 for adults. On a certain day, a total pf 2200 people entered the fair

mash [69]

Answer:

the answer and explanation is in the picture I hope this helps

Step-by-step explanation:

8 0

3 years ago

A motorboat takes 3 hours to travel 108 kilometers going upstream. The return trip takes 2 hours going

IRISSAK [1]

Answer:

45 km/h and 9 km/h

Step-by-step explanation:

Let the rate of boat in still water be b and the speed of the current be c

Speed downstream = b + c
Speed upstream = b - c

We got equations for time:

108/(b - c) = 3 ⇒ b - c = 36
108/(b + c) = 2 ⇒ b + c = 54

Add up the equations:

b - c + b + c = 36 + 54
2b = 90
b = 45 km/h

Then finding the values of c

c = 45 - 36 = 9 km/h

6 0

3 years ago