3 years ago

There are 25 boxes of paper each box has 89 pieces of paper are in all

Mathematics

2 answers:

Mars2501 [29]3 years ago

6 0

Answer:

2225

Step-by-step explanation:

because 25*89=2225

vichka [17]3 years ago

4 0

Answer:

2,225 pieces of paper

Step-by-step explanation:

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They hiked 2.02 kilometers in all because 1.08 + 0.94 = 2.02

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sally gave her brother 3.95 in quarters and dimes. if the number of quarters is 6 more then the number of dimes, how many quarte

iragen [17]

Let q be the number of 25 cent coins.
Let d be the number of 10 cent coins.
0.25q+0.10d= 3.95...(1)
q-d=6...(2)

(2)-> q-d= 6
q-d+d= 6+d
q= 6+d...(2a)

(2a)-> (1) 0.25q+0.10d=3.95
0.25(6+d)=0.10d= 3.95
1.95+0.25d+0.10d= 3.95
0.35d= 3.95-1.5
0.35d/0.35= 2.45/0.35
d= 7...(3)

(3)->(2) q-d= 6
q-7= 6
q=6+7
q= 13
There are 13 quarters and 7 dimes.

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3 years ago

3x+5y=14 and 6x-4y=9

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Answer:

Step-by-step explanation:

Bấm máy tính hệ phương trình là ra

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3 years ago

A recent study suggested that 81% of senior citizens take at least one prescription medication. Amelia is a nurse at a large hos

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Null hypothesis: $p = 0.81$

Alternative hypothesis: $p \ne 0.81$

The null is based on a recent study that 81% of the population (in this case senior citizens) takes at least one medication. The alternative hypothesis is basically the flip of the claim made in the null.

If Amelia wanted to know if the percentage was less than 81%, then the alternative would be p < 0.81

If Amelia wanted to know if the percentage was larger than 81%, then the alternative would be p > 0.81

However, she wants to know if the percentage is 81%.

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3 years ago

Simplify the given expression. Assume that no variable equal 0.

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Answer:

The answer I think is correct is B

Step-by-step explanation:

I hope that's corrected?

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