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Vitek1552 [10]
2 years ago
11

Ariana is shopping for toilet paper, and she prefers to get the best unit price she can. At the store, brand A is priced at $49

for 7 rolls of toilet paper and brand B is priced at $72 for 9 rolls of toilet paper.
Mathematics
1 answer:
Westkost [7]2 years ago
7 0

Answer:

The best unit price is Brand A.

Step-by-step explanation:

We can find the cost for each roll of toilet paper. For Brand A, we can do 49/7, which we get 7. That means that every roll of toilet paper cost $7 for Brand A. For Brand B, we do 72/9 and get 8. That means every roll of toilet paper cost $8 for Brand B. Since Brand A is cheaper per roll, Ariana should buy from that brand.

I hope this helped and please mark me as brainliest!

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On each of three pieces of paper a three digit number is written two of the digits are covered . The sum is 826. What is the sum
Ket [755]

Answer:

9

Step-by-step explanation:

The diagram showing the three pieces of paper of three digit in which two of the letters were covered can be seen below.

From the diagram; we have;

243 , 1_7 , _26

Assuming the covered digits are _

The sum is 826.

i.e

243 + 1_7 + _26 = 826

The objective is to determine the sum of the two unknown digits

So; we need to think about what number can we add put in 1_7 to determine the covered digit in  _26

From ; 1_7 , we have the choice to pick from 0 - 9

Assuming the covered digit is 0; let's check if we are right

So; 243 + 1<u>0</u>7  +  _26 = 826

350 +   _26 = 826

_26 = 826 - 350

_26 = 476

So; the covered digit is in the position of 4 , but it doesn't tally together

i.e 426 is not the same as 476, which makes our assumption to be wrong.

Let consider the covered digit to be 5 for example.

So; 243 + 1<u>5</u>7  +  _26 = 826

400 +   _26 = 826

_26 = 826 - 400

_26 =  426

The covered digit is in the position of 4

SO;

<u>4</u>26 = 426

Here , our assumption is right.

As such , the covered digits are 5 and 4

The sum of the two  covered digits are = 5 + 4 = 9

7 0
3 years ago
If sin^2(x) - 2sin(x) = 2, then sin(x) = _____.
alekssr [168]
Let z = sin(x).
.. z^2 -2z = 2
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3 years ago
1. 51=-7x-6(-4x+17)<br><br>2. 184=-2x+6(5x-16)<br><br>Solve for x​
Afina-wow [57]

Answer:

1- x= 9

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The gross income of Ginger Hughes is $215 per week. Her deductions are: $15.16, FICA tax; $29.33, income tax; 2% state tax; 1% c
Anika [276]
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I see the percentages 2%, 1% and 3% add up to 6%
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25 POINTS!
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Answer:

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