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3 years ago

12

if you increase the number by 4 and double the sum the result you will get will be the same as four times the number decrease by

six

1 answer:

bezimeni [28]3 years ago

4 0

Answer:

Step-by-step explanation:

Let the number be x,

2(4+x)= 4x-6

8+2x= 4x-6

Collect like terms

8+6. = 4x-2x

14 = 2x

x = 14/2

x.=. 7

PLEASE GIVE BRAINLIEST.

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

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3 years ago

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devlian [24]

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3 years ago

Read 2 more answers

Lucy is a dress maker. She sews 4/7 of a dress in 3/4 hour. Lucy sees at a constant rate. At this rate, how many dresses does lu

IgorLugansk [536]

Answer:

Lucy sews $\frac{16}{21}$ dresses in 1 hour.

Step-by-step explanation:

Given:

Lucy sews $\frac{4}{7}$ of a dress in $\frac{3}{4}$ hour.

She sews at constant rate.

We need to find the number of dresses she makes in 1 hour.

In $\frac{3}{4}$ hour = $\frac{4}{7}$ dress

So in 1 hour = Number of dresses in 1 hour

By using Unitary method we get;

Number of dresses in 1 hour= $\frac{\frac{4}{7}}{\frac{3}{4}} = \frac{4}{7}\times \frac{4}{3}= \frac{16}{21}$

Hence Lucy sews $\frac{16}{21}$ dresses in 1 hour.

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3 years ago