Question

Joel has a goal to practice his clarinet for 4 hours per week. The list 5 1below shows the number of hours Joel has practiced so far this week. Monday 1 hours 2 1 Wednesday 1 hours 3 1 Thursday 1 hour How many more hours does Joel need to practice this week to meet his goal?

Answer 1

Answer:

Joel need to practice this week = $\frac{3}{4}$ hour

Step-by-step explanation:

P.S - the exact question is -

As given

Total practice goal of Joel = $4\frac{1}{2}$ hours

He practiced on : Monday - $1\frac{1}{2}$ hours

                             Wednesday - $1\frac{1}{4}$ hours

                             Thursday - 1 hour

Let the remaining practice = x hours

⇒ Total practice =  $4\frac{1}{2}$ hours

⇒$1\frac{1}{2}$ + $1\frac{1}{4}$ + 1 + x = $4\frac{1}{2}$

⇒ 1 + $\frac{1}{2} + 1 + \frac{1}{4} + 1 + x = 4 + \frac{1}{2}$

⇒3 + x - 4 = $\frac{1}{2} - \frac{1}{2} - \frac{1}{4}$

⇒x - 1 = $-\frac{1}{4}$

⇒x = $-\frac{1}{4} + 1 = \frac{-1 + 4}{4} = \frac{3}{4}$

⇒x = $\frac{3}{4}$ hour

∴ we get

Joel need to practice this week = $\frac{3}{4}$ hour