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belka [17]
3 years ago
11

Elen planned to read a book of 40 pages in two days. On the first day, she read 4 hours reading 7 pages per hour. On the second

day, it took her 2 hours to finish the book. How many pages did she read per hour on the second day
Mathematics
2 answers:
amm18123 years ago
7 0

Ok so 7 times 4 is 28 so she read 28 the first day. For the second day since 40-28= 12, 12 divided by 2 is 6. So she read 6 pages per hour.

Shkiper50 [21]3 years ago
6 0

4hr * (7 pages/hr) = 28 pages

Therefore, Elen must have read the remaining 12 pages on the second day.

Since she took 2 hours to finish the book, she read 6 pages per hour on the second day.

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√3×sinx+cosx=0 tmf nghiệm
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Answer:

x= -30

Step-by-step explanation:

√3×sinx+cosx=0

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Therefore, x= -30

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Answer:

<h3>C. They are both perfect squares and perfect cubes.</h3>

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Also 1 is perfect cube since 1*1*1 = 1³ = 1 (cube of the value gives 1)

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