Question

Hello! i need help with question 31. i am not allowed to use a calculator and i need to show all steps. i have already done the first part which is the multiplication. i found 1200. my problem is that i don’t know how to do division without a calculator so kindly explain the steps to me

Answer 1

Let:

a = Cost of each apple

n = Number of apples

T = Total cost

so:

`\begin{gathered} a\cdot n=T \\ if \\ n=6 \\ T=80 \\ so\colon \\ 6a=80 \end{gathered}`

Solve for a:

`\begin{gathered} a=(80)/(6) \\ a=(40)/(3) \end{gathered}`

Therefore:

`\begin{gathered} T=a\cdot n \\ T=(40)/(3)\cdot15 \\ T=200 \end{gathered}`

Answer:

15 apples cost 200 cents

---------------------------

6------------>80

15------------>x

`\begin{gathered} (6)/(15)=(80)/(x) \\ x=(15\cdot80)/(6) \\ x=(1200)/(6) \\ \end{gathered}`

Using long division: