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DENIUS [597]
3 years ago
14

PLEASE HELP ME , GET ON HONOR ROLL PLEASE NEED YOUR HELP

Mathematics
1 answer:
marta [7]3 years ago
7 0

Answer:

19 ft i think

Step-by-step explanation:

hop ethis helps :) have a nice day

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A bag contains 9 marbles: 2 are green, 5 are red, and 2 are blue...
natima [27]

The probibility of Alonzo pulling out two green marbles is 2/9 I believe.

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3 years ago
Water weighs 62.4 pounds per cubic foot. How much does the water in a tank that measures 7 ft × 4 ft × 9 in, weigh?
andriy [413]

Answer:

  • <u>1,310 lb</u>

Explanation:

<u>1) Calculate the volume of the water in the tank.</u>

  • Area of the base of the tank: B = 7 ft × 4 ft = 28 ft²
  • Height of the tank: H = 9 in = 9 in × 1 ft / 12 in = 0.75 ft
  • Volume of the tank: V = area of the base × height = B × H = 28 ft² × 0.75 ft = 21 ft³.

<u>2) Calculate the weight of 21 ft³ of water.</u>

Since this is not a chemistry question but a math question, I will not use the fomula of density but set a proportion with one unknown:

  • 62.4 lb / 1 ft³ = x / 21 ft³

Solve for x:

  • x = 21 ft³ × 64 lb / ft³ = 1,310.4 lb.

So, rounding to the next integer, the water in the tank weighs 1,310 pounds, when it is full.

6 0
3 years ago
Read 2 more answers
For the girl to lift this rock, she must push down with a force _____.
suter [353]

Answer:

B.

Step-by-step explanation:

B. The girl would have to use less force because she is using a simple machine, or a lever. The lever makes it easier to lift the rock because the rock is closer to the fulcrum.

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3 years ago
PLEASE HELP ME ASAP ?!?!?
GaryK [48]

Answer:

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Step-by-step explanation:

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The minimum size of a photo book ordered through a website is 6 pages. The website charges $1.70 per page for the first 6 pages.
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Well Okay, 1.70 x 6 + .90x, Your pretty much taking 1.70 multiply by 6 then adding .90 for every page after.
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