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3 years ago

PLEASE HELP ME UwU

Mathematics

2 answers:

NeTakaya3 years ago

6 0

Thank youu!!! Lol heh

klasskru [66]3 years ago

3 0

The answer is obviously 100 that was so easy

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3b 2a=5a−6 solve the equation for a in terms of <br> b.

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Is it 3b-2a=5a-6
or
3b+2a=5a-6

you are missing the sign of 2a

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2 years ago

Are 5:20 and 15:60 equivalent

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3 years ago

Read 2 more answers

At book fair, the ratio of adults to children is 7 : 3

joja [24]

The percentage of the boys at the book fair is 6%

<h3>What is a percentage?</h3>

Percentages are used in mathematics as a decimal ratio expressed in a fraction of 100. It is represented with a symbol known as %.

At a book fair, the ratio of adults to children are:

7 : 3

The total number of people at the book fair = 7 + 3 = 10

The percentage of adults are:

$\mathbf{=\dfrac{7}{10}\times 100\%}$

= 70% are adults

The percentage of children are:

$\mathbf{=\dfrac{3}{10}\times 100\%}$

= 30% are children

However, if from the children, 4 are girls and 1 is a boy.

The total number of children at the fair = 4 + 1 = 5

The percentage of girls are:

$\mathbf{=\dfrac{4}{5} \times 30\%}$

= 24%

The percentage of boys at the book fair is:

$\mathbf{=\dfrac{1}{5} \times 30\%}$

= 6%

Learn more about percentages here:

brainly.com/question/24304697

6 0

2 years ago