Question

A studio apartment in Coast City costs $400 per month. Next year the rent goes up 22%. What is the new rent per month?
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Answer 1

Answer:

18 r 4

Step-by-step explanation:

1) 40

$40 \div 22\% \: = 8 \: r \: 4 \: \\ 8 \times 22\% = 176 \: 180 - 176 = 4$

2)

$40 \div 22 \: = 1 \: r = 18 \\ 1 \times 22 = 22 \: 40 - 22 = 18$

$22 \sqrt{400} = 18r4$