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ss7ja [257]
3 years ago
14

45 popcorn kernels pop in the microwave in 3 seconds, how long will it take for a bag of 220 kernels to pop completely?

Mathematics
1 answer:
Papessa [141]3 years ago
4 0

Answer:

14.4 Seconds

Step-by-step explanation:

220 divided by 4 is 4.8

4.8 times 3 is 14.4

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Simplify the giving expression<br>(18/12 t-8)2<br>​
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Answer:

3t - 16

Step-by-step explanation:

(18/12 t-8)*2

First simplify inside the parentheses

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Then multiply

3/2t *2 -8*2

3t - 16

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One hundred tickets, numbered 1, 2, 3, …, 100, are sold to 100 people for a drawing. Four different prizes are awarded, includin
stira [4]

Solution :

It is given that four different prizes were awarded. So,

a). 4 ways for person 47 to win a prize

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     ∴  P(99,3) = 99 x 98 x 97

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8 0
3 years ago
A small airplane can fly 12 miles in 3 minutes. At this rate, how far can it fly in 7 minutes? In an hour?
Kay [80]

Answer:

28 miles in 7 minutes, 240 miles in an hour

Step-by-step explanation:

We can first simplify the rate to miles per minute. Since the plane goes 12 miles in 3 minutes, we can divide it by 3 to find how much it travels in one minute. 12 divided by 3 is 4 and 3 divided by 3 is 1

The plane travels 4 miles a minute

To find how much it travels in 7 minutes, multiply by 7

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To find an hour, multiply by 60

4x60= 240

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7 0
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