- A body shop estimates the cost of painting John’s car at $4,000 plus a garage fee of 15%. John needs to determine how much he will pay in total.
John believes he can work out the answer by multiplying 1.15 by 4,000.
Is John correct?
Solution: John is correct. The solution is $4,600.
- Find 30% more than 90 using percentage strips and double number lines.
Solution 1: Percentage Strips
10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% | 10% |
9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
10% | 10% | 10% |
9 | 9 | 9 |
\[13(9)=117\]
Solution 2: Double Number Lines
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