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aleksley [76]
2 years ago
7

A textbook store sold a combined total of 470 biology and history textbooks in a week. The number of history textbooks sold was

62 less than the number of biology textbooks sold. How many textbooks of each type were sold?
Mathematics
1 answer:
raketka [301]2 years ago
4 0
266 biology textbook
204 history textbooks
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Zander read 13 3/4pages in 1/4 of an hour. Sydney read 43 1/3 pages in 2/3 of an hour. At these rates, would Zander or Sydney re
kakasveta [241]

Answer:

At these rates Sydney read 10 pages per hour more than Zander.

Step-by-step explanation:

Zander read 13\frac{3}{4} pages in \frac{1}{4} of an hour.

Therefore, pages read by Zander in 1 hour = \frac{\text{Total pages read}}{\text{Total time taken}}

= \frac{13\frac{3}{4}}{\frac{1}{4}}

= \frac{55}{4}\times \frac{4}{1}

= 55 pages per hour

Sydney read 43\frac{1}{3} pages in \frac{2}{3} of an hours.

Pages read by Sydney in 1 hour = \frac{43\frac{1}{3}}{\frac{2}{3} }

= \frac{130}{3}\times \frac{3}{2}

= 65 pages per hour

Therefore, number of pages read more by Sydney as compared to Zander,

= 65 - 55

= 10 pages per hour

At these rates Sydney read 10 pages per hour more than Zander.

4 0
2 years ago
The height of a distance marker is 8 2/13 feet. 4/5 of the pole is painted white and rest is painted blue. How much of the pole
Mashcka [7]
1) Convert the mixed number 8 and 2/13 into a fraction:

8 and 2/13 = 8 + 2/13 = (8*13 + 2) / 13 = 106 / 13

2) Calculate 4/5 of 106 / 13

(4 / 5) * ( 106 / 13) = (4*106) / (5*13) = 424 / 65

That is (390 + 34) / 65 = 390/65 + 34/65 = 6 + 34/65 is painted white

3) Calculate the rest

 (1/5) * (106 / 13) = 106 / 65 = 1 + 41/65 is painted blue


6 0
3 years ago
I need help figuring out how to do this.
MrRa [10]
The answer will be letter "B" you take 450 times it by 4.29
and u get 1,930.50
7 0
2 years ago
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A bird flies 6 1/4 mi in 20 min.
sleet_krkn [62]
X=20*8.15/6.25 this will give you your answer
Answer:26 
Hope this helps!
8 0
3 years ago
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Question 3(Multiple Choice Worth 5 points)
AlexFokin [52]

Answer:

79.5%

Step-by-step explanation:

\frac{175-97.5}{97.5} =0.795

3 0
2 years ago
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