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4 years ago

On a test with 25 problems, Grace got 88% correct. How Manny problems did Grace get correct?

Mathematics

2 answers:

Sloan [31]4 years ago

6 0

She got 22 problems correct

Trava [24]4 years ago

4 0

It would be 22 because 22/25=0.88 which is 88 as a percent. You could find this by guessing the number and checking or by multiplying the number of problems by the percentage (as a decimal). So in this case 25x0.88=22

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Rouns thia number to the nearest thousand 1,995,298

alexdok [17]

1,995,000

The number after the thousands place is 2, which is less than 5 so the thousands place is rounded to 5,000 instead of 6,000.

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3 years ago

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garri49 [273]

Answer:

And the probability that the first die shows an odd number is 1/2, as is the probability that the second does. Since the dice fall independently, P(both are odd) = P(first is odd)*P(second is odd) = (1/2)*(1/2) = 1/4. Therefore P(at least one is even) = 1 - 1/4 = 3/4.

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3 years ago

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Find the length of the base of a square pyramid if the volume is 128 cubic inches and has a height of 6 inches

Len [333]

Answer: a = 8

Step-by-step explanation:

Volume of a square based pyramid is given as

$\frac{a^{2}h }{3}$ .

where a is the length of the side and h is the height.

Substituting into the formula , we have

V = $\frac{a^{2}h }{3}$

128 = $a^{2}h$ /3

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Divide through by 6

384/6 = $a^{2}$

64 = $a^{2}$

Therefore :

a = $\sqrt{\frac{64}{1} }$

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3 years ago

Mathematics, 04.03.2020 23:32 jtoole5341 DIVISION OF PROFITS Tom 20% Ellen 30% Sarah 25% Joel 25% Tom, Joel, Sarah, and Ellen di

inn [45]

9514 1404 393

Answer:

$738

Step-by-step explanation:

The ratio of Ellen's share (e) to Tom's share is ...

30%/20% = e/492

Multiplying by 492, we have ...

e = 492(3/2) = 738

Ellen's share of the profits is $738.

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3 years ago

What is 12/21 divided by 3/14

sladkih [1.3K]

To do this problem, you gotta cross-multiply. SO, $\frac{12}{21}$ multiplied by $\frac{14}{3}$

12 times 14 = 168
21 times 3 = 63
Then the final answer is $\frac{168}{3}$

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3 years ago