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3 years ago

11

Riaz wants to use the number sentence shown to solve a problem.

2 answers:

aleksklad [387]3 years ago

8 0

The answer is B. There are certain keywords that can show you what the sign will be.

<span>"A pet store has 12 cats. If 3 of them are sold, how many cats have not been sold?" That is basically asking you to subtracted. Can you see how? "How many cats have NOT been sold." That's the key right there. so it's obviously not that one.

"</span><span>A key chain can hold 3 keys. If there are a total of 12 keys, how many key chains are there?" That is asking you to divide 12 keys into key chains that can hold 3 keys. Did you take </span>the hint?

Answer C is obvious because the phrase "In all" is addition.

And the answer isn't D either. Does this make sense?

BARSIC [14]3 years ago

4 0

<span>B) A key chain can hold 3 keys. If there are a total of 12 keys, how many key chains are there?</span>

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Write an expression in simplest form the perimeter of the figure ?

kondor19780726 [428]

Answer:

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Step-by-step explanation:

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3 years ago

g My Notes Water flows from the bottom of a storage tank at a rate of r(t) = 200 − 4t liters per minute, where 0 ≤ t ≤ 50. Find

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Answer:

4,200 liters

Step-by-step explanation:

The flow rate is given by:

$r(t) = 200 - 4t$

Integrating the flow rate expression from t=0 to t=30 minutes, yields the total volume that flows out of the tank during that period:

$\int\limits^{30}_0 {r(t)} = \int\limits^{30}_0 {(200 - 4t} )\, dt \\V=(200t - 2t^2)|_0^{30}\\V= (200*30 -2*30^2)-(200*0 -2*0^2)\\V=4,200\ liters$

4,200 liters of water flow from the tank during the first 30 minutes.

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3 years ago

Read 2 more answers

A metal strip of 44 inches long is to be cut in 2 pieces. the smaller piece to be 12 inches shorter than the larger piece. find

Ket [755]

Answer:

Shorter Piece is 16 inches and Longer Piece is 28 Inches.

Step-by-step explanation:

Cut the 44 Inch piece in half (22+22) and subtracted 6 from one end and added six to another end which is 12 inches in total.

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3 years ago