3 years ago

Someone actually please help me I don't get this

Mathematics

2 answers:

Korvikt [17]3 years ago

8 0

The answers are:
13) 3
14) 24

pickupchik [31]3 years ago

7 0

#13 isn't too bad my friend. Just do 21-9, then divide by 4. So each ticket was $3.
15 is similar too. so he has 9 more than half. Take 9 away from 21, and you have 12. Double that, and you have the original 24.

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Morgarella [4.7K]

Answer:

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Step-by-step explanation:

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2 years ago

7/7q+21= x /5q^2-45 then x=?

anzhelika [568]

Answer:

x = 5q - 15

Step-by-step explanation:

$\frac{7}{7q+21}=\frac{x}{5q^{2}-45}\\\\\frac{7}{7(q+3)}=\frac{x}{5 (q^{2} -9)}\\\\frac{1}{q+3}=\frac{x}{5*(q^{2}-3^{2})}\\\\\frac{1}{q+3}=\frac{x}{5(q+3)(q-3)}\\\\\frac{1}{q+3}*5*(q+3)(q-3)=x\\\\5(q-3)=x\\\\x= 5q-15$