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agasfer [191]
3 years ago
8

Cody was 165cm, {cm}165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school

last year. How tall was Cody on the first day of school last year?
Mathematics
2 answers:
strojnjashka [21]3 years ago
8 0

Answer:

Cody was 148.5cm on the first day of school last year.

Step-by-step explanation:

10% = 0.1

165 x 0.1 = 16.5

165 - 16.5 = 148.5

Aloiza [94]3 years ago
7 0

For this case we have that Cody average 165cm in height and that represented 10% higher than last year.

Then, making a rule of three we have:

165cm ----------> 100%

x --------------------> 10%

Where "x" represents the cm that equals 10%

x = \frac {10 * 165} {100}\\x = 16.5cm

To know the height of Cody last year, we subtract:

165cm-16.5cm = 148.5cm

So, Cody had 148.5 cm on the first day of school last year.

Answer:

148.5cm

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