3 years ago

Of the total amount of available water on the earth, what percent is usable?

Mathematics

1 answer:

prohojiy [21]3 years ago

8 0

Only 20%of earths water is useable

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What is the surface area of a cylinder that has the following measurements? area of each base: 50.24 ft2 area of lateral surface

irinina [24]

Answer:

TSA = 175.84 ft²

Step-by-step explanation:

We are given;

Lateral surface area; A_L = 75.36 ft²

Area of base; A_b = 50.24 ft²

Height of cylinder; h = 3ft

Formula for total surface area of Cylinder is;

TSA = 2πr² + 2πrh

Now, lateral surface area is given by the formula; A_L = 2πrh

Area of base is given by the formula;

A_b = πr²

Thus, let's apply these 2 formulas to the formula for total surface area;

TSA = 2(Area of base) + Lateral surface area

TSA = (2 * 50.24) + 75.36

TSA = 175.84 ft²

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2 years ago

A chicken weighs pounds and needs to be cooked 20 minutes per pound plus an extra 15 minutes used expression 20+15 to find how l

Svetach [21]

Answer:

20m

Step-by-step explanation:

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2 years ago

Keenan has 28 CDs and 44 DVDs. What is the ratio of DVDs to CDs?

pantera1 [17]

Answer is D.
28:44 is the ratio but you have to simplify it. Divide both by 4. 28 divided by 4 = 7; 44 divided by 4 = 11

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2 years ago

PLEASE HELP!<br><br>write an expression ( simplified ) for the perimeter of the given figure

liraira [26]

Answer:

Step-by-step explanation:

2(3x-1)+2(6)

6x-2+12

6x+10

8 0

3 years ago

Read 2 more answers

Tony worked 4 2/3 hours on his science project. Sonia worked 1 1/4 times as long on her science project as Tony did.For how many

kherson [118]

To find how many hours Sonia work on her science project,we can multiply the working hours of Tony by the times Sonia did:

$4 \frac{2}{3} \times 1 \frac{1}{4} \\ = \frac{14}{3} \times \frac{5}{4} \\ = \frac{70}{12} \\ = 5 \frac{10}{12} \\ = 5 \frac{5}{6}$
Therefore Sonia work on her science project for 5 5/6 hours.

Hope it helps!

7 0

2 years ago