janeou17xn
04.03.2021 •
Mathematics
Mai received a $70 gift card for a coffee store. She used it in buying coffee that cost $8.48 per pound. After buying the coffee, she had $27.60 left on her card. How many pounds of coffee did she buy?
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Ответ:
Amount spent in buying coffee = $70 - $35.48 = $34.52
Cost of coffee = $8.63 per pound
No of pounds = Amount spent / cost per pound
= 34.52 / 8.63 Use your calculator.
= 4
Ответ:
Question:
Which is the value of the expression
A. 1
B. 2
C. 8
D. 10
B. 2
Step-by-step explanation:
Given
Required
Evaluate
Split Fraction
From Laws of Indices
Applying this law to the above expression, we have
Also, from Laws of Indices
Applying this law to the above expression, we have
Multiply 10 by 1
Hence,