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-Dominant- [34]
3 years ago
6

Donna received a $90 gift card for a coffee store. She used it in buying some coffee that cost $7.24 per pound. after buying the

coffee she had $53.80 left on her card. How many pounds of coffee did she buy
Mathematics
2 answers:
Marat540 [252]3 years ago
7 0

Answer: 5 pounds

Step-by-step explanation:

90 - 53.8 = 36.2

She spent $36.20 on pounds of coffee.

36.2/7.24 = 5

Donna bought 5 pounds of coffee.

Nikolay [14]3 years ago
5 0
Donna bought 5 pounds of coffee because she had $53.80 you will subtract that from 90 and you will get 36.20 which means that’s how much she spend and divide that but 7.24 because that’s how much is pound of coffee is and you will receive your answer of how many pounds she bought. Which is 5
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Answer:

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Hope this helped :)

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Complete the table of values
Agata [3.3K]
Both problems give you a function in the second column and the x-values. To find out the values of a through f, you need to plug in those x-values into the function and simplify! 

You need to know three exponent rules to simplify these expressions:
1) The negative exponent rule says that when a base has a negative exponent, flip the base onto the other side of the fraction to make it into a positive exponent. For example, 3^{-2} =
\frac{1}{3^{2} }.
2) Raising a fraction to a power is the same as separately raising the numerator and denominator to that power. For example, (\frac{3}{4}) ^{3}  =  \frac{ 3^{3} }{4^{3} }.
3) The zero exponent rule<span> says that any number raised to zero is 1. For example, 3^{0} = 1.
</span>

Back to the Problem:
Problem 1 
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<span>1) x = 0
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<span>
2) x = 2
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Problem 2
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<span>
-------

Answers: 
a = 1
b = </span>\frac{1}{16}<span>
c = </span>\frac{1}{256}
d = 1
e = \frac{4}{9}
f = \frac{16}{81}
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second one is correct

mark me brainlist

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