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scoundrel [369]
3 years ago
7

A teacher asks a student to find 54 of a number. Instead, the student finds 45 of the number. Her answer is 36 less than the cor

rect answer. What is the correct answer?
Mathematics
1 answer:
Marrrta [24]3 years ago
5 0
45 of a number refers to 180, and 54 refers to 216. So 100 of a number is 400 and 1 of a number is 4. If 54x - 45x = 36, just plug in 4 and double check: 54(4) - 45(4) = 36 or 216 - 180 = 36, which is true.
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8 0
3 years ago
Read 2 more answers
Tonya bought gifts for her family that cost $25, $14, $33, and $19. She has to buy one more gift and wants her mean cost to be $
Brums [2.3K]

____________________________________________________

Answer:

Your answer would be $34.

____________________________________________________

Step-by-step explanation:

In order to get the mean cost that she wants from the gift, we would need to get the numbers that we already had, and have another set of row with the amount of gifts she needs with the mean she wants.

Here is how it should look like:

$25  $14  $33  $19    x

$25  $25  $25  $25 $25

We are trying to find the number for "x"

Therefore, we would need to use the process of adding, then subtracting after.

Lets add:

25+14+33+19=91\\\\25+25+25+25+25=125

What we would do now is subtract the numbers in order to get the price that Tonya wants from her gift, if she buys another gift.

125-91=34

Tonya should spend $34 on her last gift.

$34 should be your FINAL answer

____________________________________________________

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3 years ago
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Damm [24]

Answer:

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Step-by-step explanation:

it drains 7 gallons per a minute so therefore in 35 gallons it would be 35/7 which is 5 minute for 35 gallons

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3 years ago
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Well, this question isn't really fair, considering that those sides aren't possible to make a square since a square has 4 congruent sides.
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