2 factors of 28 add up to 9 what are they

Mathematics

2 answers:

bogdanovich [222]3 years ago

5 0

It is 2 and it is 7 the two factors your welcome

salantis [7]3 years ago

5 0

Think of all the factors that equal 28 and line them up smallest to greatest.

1, 2, 4, 7, 14, 28

Look at all the numbers, and try adding some of them together.

Let's start with 1.

1+2=3 ×
1+4=5 ×
1+7=8 ×

Well, 1 isn't one of the factors because no matter which factor you add it to, it'll be either larger or smaller than 9.

Let's try 2.

2+1=3 ×
2+4=6 ×
2+7=9 √

The factors 2 & 7 added together equal 9.

Hope this helps.

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Softa [21]

Answer:

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3 years ago

A girl is 18 years old and her brother is a third of her age. When the girl is 36 what would be the age of the brother?

ale4655 [162]

First we need to calculate how many years her brother has when she is 18. As text says he is:
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8 0

3 years ago

Read 2 more answers

Please help solve this with working out :)

Anastaziya [24]

I hope this can help u