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jpwalker8535
26.02.2020 •
Mathematics
Kiara tutors 20 hours each month at the library. She tutored for 2One-third hours the first week and 1.5 hours the second week. How many more hours does she need to tutor this month?
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Ответ:
17.1 hrs
Step-by-step explanation:
If she tutored 2 1/3hours the first week and 1.5 hours the second week .
That’s 2 1/3 hrs + 1.5hrs
Change 2 1/3 to improper fraction. It becomes
7/5 = 1.4 hrs
1.4 hrs + 1.5 hrs = 2.9 hrs
So she’s tutored 2.9 hrs in the first 2 weeks
Hours remaining for her to tutor this week = hours she tutors every month - hours already done this month
That’s 20 hrs - 2.9 hrs
= 17.1 hrs
She has 17.1 hours more to tutor this month
Ответ:
Step-by-step explanation:
If a triangle is classified a right triangle we can :
apply the pythagorian theorem write relations to calculate the cos and sin and tan