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nydimaria [60]
4 years ago
15

Joel has a goal to practice his clarinet for 4 1/2 per week. The list below shows the number of hours Joel has a practiced so fa

r for the week. Monday 1 1/2 hours Wednesday 1 1/4 hours Thursday 1 hour How many more hours does he need to practice this week to meet his goal
Mathematics
1 answer:
MrRissso [65]4 years ago
5 0

0.75 hours more is needed to practice to meet his goal

<em><u>Solution:</u></em>

Given that,

Goal per week of Joel = 4\frac{1}{2} = \frac{2 \times 4 + 1}{2} = \frac{9}{2}

From given,

<em><u>The list below shows the number of hours Joel has a practiced so far for the week</u></em>

Monday = 1\frac{1}{2}\ hours = \frac{3}{2}\ hours

Wednesday = 1\frac{1}{4}\ hours = \frac{5}{4}\ hours\\\\Thursday = 1\ hour

<em><u>How many more hours does he need to practice this week to meet his goal</u></em>

Find the difference

Hours needed = Goal per week of Joel - (monday + wednesday + thursday)

Hours\ needed = \frac{9}{2} - (\frac{3}{2} + \frac{5}{4} + 1)\\\\Hours\ needed = 4.5-(1.5+1.25+1)\\\\Hours\ needed = 4.5 - 3.75 = 0.75\\\\Hours\ needed = 0.75 = \frac{3}{4}

Thus 0.75 hours more is needed to practice to meet his goal

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