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Elena-2011 [213]
3 years ago
9

Mary can read 22 pages in 30 minutes. How long would it take her to read a 100 page book? Write your answer in hours and minutes

Mathematics
1 answer:
Rainbow [258]3 years ago
4 0

Answer:

Step-by-step explanation:

Step one:

given data

we are told that Mary can read 22 pages in 30 minutes (0.5 hours)

let us find the number of pages per minute she can read

rate= quantity/time

rate= 22/30

rate=0.73 pages per minute

or

rate= 22/0.5

rate= 44 pages per hour

Step two:

Required

time taken to read 100 pages

t= quantity/rate

t=100/0.73

t=136 pages per minute

or

t= 100/44

t=2.3 pages per hour

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How do you do this for expanding and factoring expressions 8(4x-12)
Snezhnost [94]

Answer:

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3 years ago
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Answer:

2 Real Roots

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The discriminant (D) is found using the formula b^2+4ac for the equation ax^2+bx+c.

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6 0
4 years ago
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Hi

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4 years ago
Read 2 more answers
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