Answer:
Elizabeth spent 17.5 hours and her sister spent 12.5 hours.
Step-by-step explanation:
Let x be the number of hours that Elizabeth shoveled and y be the number of hours that her sister shoveled.
Number of hours they shoveled = 30
So, x + y = 30 or
y = 30 - x
Jenna charged $12 per sidewalk.
So, her total earnings = 12x
Her sister charged $11 per sidewalk.
So, her total earnings = 11y.
Their total income = $347.50.
So, 12x + 11y = 347.5
Substitute y = 30 - x,
12x + 11(30 - x) = 347.5
12x + 330 - 11x = 347.5
x + 330 = 347.5
x = 347.5 - 330
x = 17.5 and
y = 30 - x = 30 - 17.5 = 12.5.
Hence, Elizabeth spent 17.5 hours and her sister spent 12.5 hours.
Answer:
When adding two fractions with a common denominator, you do NOT add the denominators together. Therefore, we can say + = and not .
Hope this helps and stay safe and healthy in quarantine!
2^-4 is saying to just flip it to the top or the bottom( opposite of where It currently is so 3*(1/2^-4)+100 is the same as 3*(2^4)+100
3*(16)+100
48+100
148 answer
Answer:
<u>the amount saved in buying a pair of $32.95 blue jeans on sale for $26.50</u>
Step-by-step explanation:
all of the options are pretty good answers but the last ones seems to be the most reasonable
The answer is the AREA of a figure is a measurement of the space inside it.