Question

Flying lessons on weekdays cost m dollars per hour. Flying lessons on weekends cost 1.2m dollars per hour. The expression 9m+3(1.2m) represents the to

Answer 1

Answer:

The cost of lesson for 9 hours on weekdays and 3 hours on weekends

Step-by-step explanation:

Given

$Weekdays = \ m /hour$

$Weekends = \ 1.2m/hour$

Required

What does 9m + 3(1.2m) represent

The expression can be split to:

9m and 3(1.2m)

For 9m:

From the question, we understand that:

$m = 1\ hour$

Multiply both sides by 9

$9 * m = 1\ hour * 9$

$9 m = 9\ hours$

This means that:

9m = the cost of lessons for 9 hours on weekdays

For 3(1.2m):

From the question, we understand that:

$1.2m = 1 \ hour$

Multiply both sides by 3

$3 * 1.2m = 1 \ hour * 3$

$3(1.2m) = 3 \ hours$

This means that:

3(1.2m) = the cost of lessons for 3 hours on weekends

Hence, the expression represents:

The cost of lesson for 9 hours on weekdays and 3 hours on weekends