ksweeny02
30.06.2019 •
Mathematics
In the 3rd grade there are 60 kids and ten more girls than boys how many boy costumes and girl costumes will they need
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Ответ:
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)
Ответ: