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3 years ago

15

If a certain number is multiplied by five, the result is the same as twenty-one plus twice the original number. What is the valu

e of the original number?

2 answers:

expeople1 [14]3 years ago

6 0

7
7 times 5 = 35
21 + 14 (7*2) = 35

Zepler [3.9K]3 years ago

4 0

Let the number be x

a.t.g.c
5x = 21+ 2x
5x-2x = 21
3x = 21

x = 21/3

x = 7 give me brainliest

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Answer:

Step 4: 44 32/24 - 37 15/24= 8 17/24

<u>Here we can finally find out the mistake done by Noa. The result is 7 17/24 and not 8 17/24.</u>

Step-by-step explanation:

1. Let's review carefully all the steps taken by Noa to calculate the difference of the circumferences of the two trees.

Circumference Tree 1 = 37 5/8 inches around

Circumference Tree 2 = 45 1/3 inches around

Step 1: 45 1/3- 37 5/8

The measures are correct, no issues copying them.

Step 2: 45 8/24 - 37 15/24

Noa looked for common denominators

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Noa looked for making the fraction part higher on the left side:

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Step-by-step explanation:

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