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3 years ago

Does 125/35 and 25/7 form a proportion

Mathematics

1 answer:

White raven [17]3 years ago

6 0

Answer:

Yes it does

Step-by-step explanation:

(125/35)=(25/7)

((125/5)/(35/5))=(25/7)

(25/7)=(25/7)

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A school had 400 girls last year and the number of boys was 95 more than that of the girls. This year the number of girls had in

STatiana [176]

Answer: The fraction by what the number of boys had been reduced=1/11

Step-by-step explanation:

Step 1: To calculate the number of boys last year.

According to the question,

The number of boys last year= 400+95

The number of boys last year=495

Step 2: To calculate the number of girls this year.

According to the question,

The number of girls this year= 400 + 400*1/5

The number of girls this year= 480

Step 3: To calculate the number of boys this year.

According to the question,

The number of boys this year= 480 – 30

The number of boys this year=450

Step 4: To calculate the fraction by what the number of boys had been reduced.

The number of boys reduced= the number of boys last year - the number of boys this year

The number of boys reduced= 495 - 450 = 45

The fraction by what the number of boys had been reduced

= The number of boys reduced/the number of boys last year

Therefore,

The fraction by what the number of boys had been reduced= 45/495= 1/11

6 0

3 years ago

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ExtremeBDS [4]

No it's not a right triangle.

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3 years ago

How do you write 12 ten thousands, 8 thousands, 14 hundreds, 7 ones in standard form

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128,147 that is in standard form

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Barry Katz earns $1,275 per week. He is married and claims two exemptions. What is Barry’s income tax? Use percentage method.

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Answer: I’m not sure but I think the answer is $255

Step-by-step explanation:

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3 years ago

Can any body help my son with this is very important please some body help him in tanks very much I hope some body help me

riadik2000 [5.3K]

The top box on the page explains the idea completely.
You need to read the top box several times, and understand it.
A ratio is a comparison of two quantities by division.

1). Days in May: 31
   Days in a year: 365
   Their ratio: 31/365 .

2). Sides of a triangle: 3
   Sides of a square: 4
   Their ratio: 3/4 .

The middle box explains how two ratios can be equal,
and it gives you a very detailed example. You should
read the middle box and understand it.
Ratios are fractions. They can be equal in just the same
way that any two fractions can be equal.
And you can simplify ratios in exactly the same way that
you simplify fractions ... divide top and bottom both by
the same number.

3). 8/12   Cook up three equal ratios.
   1. divide top and bottom by 2 . . . . . 4/6
   2. divide top and bottom by 4 . . . . . 2/3
   3. multiply top and bottom by 9 . . . . 72/108
   These are just some that I chose.
   There are millions of others.

4). 20/25 Cook up three equal ratios.
   1. divide top and bottom by 5 . . . . . 4/5
   2. multiply top and bottom by 4 . . . . 80/100
   3. multiply top and bottom by 3 . . . . 60/75
   These are just some that I chose.
   There are millions of others.

5). 5/6 Cook up three equal ratios.
   1. multiply top and bottom by 2 . . . . 10/12
   2. multiply top and bottom by 3 . . . .
   3. multiply top and bottom by 9 . . . . 45/54
   These are just some that I chose.
   There are millions of others.

6).   10/14 Cook up three equal ratios.
   1. divide top and bottom by 2 . . . . 5/7
   2. multiply top and bottom by 2 . . . .
   3. multiply top and bottom by (you choose) . . . .

5 0

3 years ago