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olasank [31]
2 years ago
11

14. This week, Anita spent 3 1/2 h practicing the piano. She also spent 6 1/4 h at soccer practice and 4 1/3 h on the telephone.

a) How much time, in total, did Anita spend on the piano and at soccer? b) How much more time did Anita spend at soccer than on the phone?
this is fractions
Mathematics
1 answer:
gizmo_the_mogwai [7]2 years ago
7 0

Answer:  a)9 3/4 hours

B)1 11/12 hour

Step-by-step explanation:

Piano: 3 1/2 hour; 3hours 30min

Soccer: 6 1/4 hour; 6hours and 15 min

Telephone: 4 1/3 hour; 4 hours and 20 min.

Remember that in an hour there is 60 min, and 1/2 of an hour is 30 (min), 1/4  is 15(min) and 1/3 is 20(min).

a) 3hours and 30min + 6hours and 15 min

That gives us 9 hours and 45 min, which is 9 3/4 hours.

B) 6hours and 15 min — 4 hours and 20 min

That gives us 1 hour and 55 min, which is 1 11/12 hours.

I hope this helps you!

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Answer:

Hey!

Step-by-step explanation:

I got this off the internet for you.

In statistics, the standard deviation (SD, also represented by the Greek letter sigma σ or the Latin letter s) is a measure that is used to quantify the amount of variation or dispersion of a set of data values.

Hope this helps! :)

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5 0
3 years ago
Look at the image please helppp
balu736 [363]

Answer:

Option A. one rectangle and two triangles

Option E. one triangle and one trapezoid

Step-by-step explanation:

step 1

we know that

The area of the polygon can be decomposed into one rectangle and two triangles

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therefore

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so

A=(8)(4)+2[\frac{1}{2}((8)(4)]=32+32=64\ yd^2

step 2

we know that

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therefore

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7 0
3 years ago
2y-3[3-4(y-5)+2(1-3y)]
soldi70 [24.7K]

Answer:

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Step-by-step explanation:

2y-3[3-4(y-5)+2(1-3y)]

= 2y - 3(3 - 4y + 20 + 2 - 6y)

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