3 years ago

If the denominator of 7 12 is increased by a number and the numerator of the fraction is doubled, the result is 1. find the numb

er.

Mathematics

1 answer:

den301095 [7]3 years ago

4 0

$\frac{7*2}{12+x} = 1 \rightarrow 12+x = 14 \rightarrow x=2$

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1.32:3 1/7 =(1.4y): 5/6

alina1380 [7]

After solving $1.32:3 \frac{1}{7}=(1.4y):\frac{5}{6}$ we get y=0.24

Step-by-step explanation:

We need to solve the ratio: $1.32:3 \frac{1}{7}=(1.4y):\frac{5}{6}$ and find value of y

Solving:

$1.32:3 \frac{1}{7}=(1.4y):\frac{5}{6}$

Converting fractions into decimals

$1.32:3.14=(1.4y):0.83$

Ratio can be written as:

$\frac{1.32}{3.14}=\frac{1.4y}{0.83}$

Now cross multiply

$1.32*0.83=1.4y*3.14$

$1.09=4.39y$

$y=\frac{1.09}{4.39}$

$y=0.24$

So, after solving $1.32:3 \frac{1}{7}=(1.4y):\frac{5}{6}$ we get y=0.24

Keywords: Ratio

Learn more about Ratios at:

#learnwithBrainly

6 0

3 years ago

Someone please help<br> this is for a grade but I forgot how to do this helppp!!

shepuryov [24]

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Find the area of the circle. (Take pi 22/7

Vikki [24]

Answer:

1386cm^2.

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area of circle(a)=?

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ira [324]

Answer:

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Multiply both sides by 3:

$2x-20=6x$

Subtract 2x from both sides:

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Divide both sides by 4:

$x=-5$

Hope this helps!

6 0

3 years ago

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