Question

1. the average yearly snowfall in edmonton is 123.5 cm. lethbridge receives 105.7% as much snow as edmonton. what is the average yearly snowfall in lethbridge, measured to the nearest tenth of a centimetre?

Explanation:

Step1: Convert percentage to decimal

To find the snowfall in Lethbridge, we first convert 105.7% to a decimal. We do this by dividing by 100, so \( 105.7\% = \frac{105.7}{100}=1.057 \).

Step2: Multiply by Edmonton's snowfall

Now, we multiply this decimal by Edmonton's average yearly snowfall (123.5 cm). So the calculation is \( 123.5\times1.057 \). Let's compute that: \( 123.5\times1.057 = 123.5\times(1 + 0.05 + 0.007)=123.5\times1+123.5\times0.05 + 123.5\times0.007 = 123.5+6.175+0.8645 = 130.5395 \).

Step3: Round to the nearest tenth

To round 130.5395 to the nearest tenth, we look at the hundredth place. The digit in the hundredth place is 3, which is less than 5, so we keep the tenth place as it is. So 130.5395 rounded to the nearest tenth is 130.5.

Answer:

130.5 cm