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olya-2409 [2.1K]
3 years ago
9

A bookstore had 81 copies of a magazine. Yesterday it sold 7\9 of them. How many copies were sold yesterday?

Mathematics
1 answer:
Masja [62]3 years ago
7 0

Answer:

63

Step-by-step explanation:

81 x 7/9 = 63

To calculate, multiply 81 x 7. Then divide that total by 9.

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375 = 3 x 5 x 5 x 5 =
Fofino [41]
375=3×5×5×5 = 15 × 25
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3 years ago
A skyscraper with 102 floors is 1,326 feet tall each floor is the same height how tall is each floor show your work
Alika [10]

Answer:

each floor is 13 feet tall

Step-by-step explanation:

1326/102 = 13 feet

4 0
3 years ago
Miranda needs to add 68 + 19 mentally but is struggling. If she knows that 68 + 20 = 88, how can she use this to help?
stealth61 [152]
She can use 68 + 20 = 88 to help by noticing that the 20 is ahead of 19 by 1. She can easily mentally turn the 20 into a 19 and realized that the 88 would become 87.
7 0
3 years ago
I need help answering
german

6t - 20 - 32u

6(6) - 20 - 32(1/4)

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36 - 20 = 16 - 8 ⇒8

The final answer is 8.

4 0
3 years ago
Please answer correctly! I will mark you Brainliest!
bekas [8.4K]

Answer:

The volume of the prism is 1250cm^{3}

Step-by-step explanation:

First let's get the area of the triangle. To get that, we use the formula \frac{bh}{2}

In words, this is <em>base · height ÷ 2</em>

When we plug in the numbers, it is 10 · 10 ÷ 2, which is equal to 50.

And of course we multiply 50 by 25 to find 1250cm^{3}

6 0
3 years ago
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