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Hoochie [10]
3 years ago
5

Help will give brainliest

Mathematics
1 answer:
andriy [413]3 years ago
5 0

Answer:

<h2>120 Pennies</h2>

Step-by-step explanation:

First, we need to find 80% of 400

400 x 0.8 = 320

Now 50% of 400 is 200

320 - 200 = 120

Cary donated:

<h2>120 Pennies</h2><h2>I'm always happy to help :)</h2>
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I WILL AWARD BRAINLIEST IF YOU ANSWER ALL OF THESE!! THANK YOU!!
vaieri [72.5K]

Answer:

<u>1. The number is 71.3</u>

<u>2. The number is 127.1</u>

<u>3. The number is 230</u>

<u>4. The number is 34</u>

Step-by-step explanation:

Let's find out the numbers, x, for each case:

1. 5% of it is 5% of it is 23% of 15.5

5% = 0.05

23% of 15.5 = 0.23 * 15.5 = 3.565

Then, we have:

0.05x = 3.565

x = 3.565/0.05

x = 71.3

<u>The number is 71.3</u>

2. 4% of it is 31% of 16.4

4% = 0.04

31% of 16.4 = 0.31 * 16.4 = 5.084

Then, we have:

0.04x = 5.084

x = 5.084/0.04

x = 127.1

<u>The number is 127.1</u>

3. 4.5% of it is 23% of 45

4.5% = 0.045

23% of 45 = 0.23 * 45 = 10.35

Then, we have:

0.045x = 10.35

x = 10.35/0.045

x = 230

<u>The number is 230</u>

4. 5.5% of it is 17% of 11

5.5% = 0.055

17% of 11 = 0.17 * 11 = 1.87

Then, we have:

0.055x = 1.87

x = 1.87/0.055

x = 34

<u>The number is 34</u>

8 0
3 years ago
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