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spayn [35]
3 years ago
11

There are (49)5 ⋅ 40 books at the library. What is the total number of books at the library?

Mathematics
1 answer:
ANTONII [103]3 years ago
7 0
(4^9)5 X 4^0
4^9 is 262,144 x 5 = 1,310,720
1,310,720 x 1 = 1,310,720
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For every 5 pages in a book Fred reads, Lonnie reads 4 pages. In 1 hour, they read a combined total of 36 pages. How many pages
nydimaria [60]

Answer:

Hence the number of pages read by Lonnie is 16 pages when they read a combined of 36 pages.

Step-by-step explanation:

The table that can be formed by the rate at which they study the number of pages of a book is:

Fred     Lonnie       total

 5           4                9

 10          8               18

 15          12              27

 20         16              36

That means when they read a combined of 36 pages.

Then the number of pages read by Fred is 20 pages.

and the number of pages read by Lonnie is 16 pages.

(

Also it could be done as :

Let Fred reads 'x' pages.

so, the number of pages read by Lonnie is: (4/5)x

Hence,

x+(4/5)x=36

on solving this linear equation we have:

x=20

and (4/5)x=16

)

Hence the number of pages read by Lonnie is 16 pages when they read a combined of 36 pages.

3 0
3 years ago
A 30cm board is cut down to be 25.5 cm. What is the percent decrease in length?
zmey [24]
Okie, so percent decrease is the amount loss divided by the original number and multiplied by 100 to find the percent. This is because you are finding the amount loss in terms of the total amount - percent basically.
The amount loss : 4 feet
4 feet/ 12 feet = .3333 (ratio of how much cut) multiply by 100 --> 33.3% decrease. From 12 feet to 8 feet is a 33.3 % decrease. I hope this helps :-)
8 0
3 years ago
WHAT WOULD THIS BEEEE!!
Alekssandra [29.7K]
The answer is d :) have a good day
6 0
3 years ago
Translate the phrase into an algebraic expression 7 more than c
Svetllana [295]

Answer:

Step-by-step explanation:

c+7

you have 7 more then a number c

7 0
3 years ago
Which two amounts does this statement identify?
____ [38]
That would be net income (amount made after taxes have been deducted) and hourly wage (amount made per hr at work)
3 0
3 years ago
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