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3 years ago

In the 3rd grade there are 60 kids and ten more girls than boys how many boy costumes and girl costumes will they need

Mathematics

2 answers:

Feliz [49]3 years ago

3 0

Answer: 35 girl costumes, 25 boy costumes.

Step-by-step explanation:

60 split into 2 groups is 30 each.

Add 5 to one group and subtract 5 from the other to get a difference of 10.

Girls group is 30+5=35

Boys group is 30-5=25

Mars2501 [29]3 years ago

3 0

Answer:

They will need 25 boy costumes and 35 girls costumes.

Step-by-step explanation:

There are x boys.

There are x + 10 girls.

Altogether, there are x + x + 10 students.

Altogether, there are 60 students, so

x + x + 10 = 60

2x + 10 = 60

2x + 50

x = 25 (boys)

x + 10 = 35 (girls)

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If f(x) = 10 + 50x, solve for x when f(x) = 310.

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x = 6

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