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AveGali [126]
4 years ago
9

A restaurant owner estimates that his restaurant will serve 430 customers the first week it is open. The actual number of custom

ers the first week is 400. Find the percent error.
Mathematics
1 answer:
densk [106]4 years ago
4 0
Well, what is 30/400 as a percentage?

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What is -7/2n=49 how would you find the answer to this fraction
Advocard [28]
-7/2n = 49

First, we need to simplify 7/2n to 7n/2. This will make the problem easier to solve.
- \frac{7n}{2} = 49

Second, since we are trying to get the variable (x) by itself on one side of the problem to equal something, we can start off by multiplying each side by 2. This will get rid of our fraction.
-7n = 49 \times 2

Third, we can go ahead and multiply 49 × 2, which is easily done by a calculator, etc. The answer to 49 × 2 is 98.
-7n = 98

Fourth, let's now divide each side by -7. This will recreate a fraction but we can get our answer very easily from now. Go ahead and put the negative sign in front of the fraction as well.
n =  -\frac{98}{7}

Fifth, our last step is to simplify the fraction. Basically, ask yourself 'what can be multiplied by 7 to equal 98? Or, 98 ÷ 7. The answer either way is 14 (don't forget your negative).
n = -14

Answer: \fbox {n = -14}
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Svet_ta [14]
What is the given information?

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The ratio of the corresponding side lengths of two similar iPhones is 4 : 3. The area of the larger iPhone is 8 square inches. W
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Answer:

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Step-by-step explanation:

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The scale factor that can be used to calculate the corresponding sides of the bigger iPhone, when the length of the smaller iPhone is known is

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Answer:

see explanation

Step-by-step explanation:

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4

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Answer:

Step-by-step explanation:

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