Question

Last week the water level of thedam was m meters. This week thewater level of the dam decreasedby 34% Which one of the followingexpressions shows the differencebetween the water levels, in meters, of the dam last week and this week?A: 1.34mB: 0.34mC: m- 0.34mD. m- 0.34

Answer 1

SOLUTION:

Step 1:

In this question, we are given the following:

Last week the water level of the dam was m meters.

This week the water level of the dam decreased by 34%.

Which one of the following expressions show the difference between the water levels, in meters, of the dam last week and this week?

Step 2:

The details of the solution are as follows:

Assuming, that last week the water level of the dam was m meters.

This week, the water level of the dam decreased by 34%; this means:

$34\text{ \% of m = }\frac{34}{100}\text{ m = 0.34 m}$

Then, the difference between the water levels, in meters, of the dam last week and this week is given by:

$\text{m - 0. 34 m \lparen OPTION C \rparen}$

CONCLUSION:

The final answer is:

$\text{m - 0. 34 m \lparen OPTION C \rparen}$