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deff fn [24]
3 years ago
6

Eighty percent of a roof, or 2800 square feet of the roof, has been re-shingled.

Mathematics
1 answer:
asambeis [7]3 years ago
8 0

Answer:

a) 35,000 sq ft

Step-by-step explanation:

x = total area

the question is: 80% of what number equals 2800

.8x = 2800

x = 2800/0.8

x = 3500

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Which relation is a function?<br> Please help
s344n2d4d5 [400]

Answer: the bottom right one

Step-by-step explanation:

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8 0
3 years ago
A machine drops 74 milliliters of liquid into a beaker every minute. Using an empty beaker, Sarah started the machine and left t
Zina [86]

Answer:

Division, you can divide the total amount of total milliliters buy the number of milliliters dropped every minute. 1850/74= 25. So m= 25. Sarah left the room for 25 minutes

Step-by-step explanation:

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8 0
3 years ago
Mary buys 8 widgets for $40.00 she adds $1.00 in enhancements to each widget and sells them for $9.00 each. What is Mary's estim
Maslowich
The gross profit margin is calculated using the following rule:
gross profit margin = total profit / total sales

Now, we need to get the values of total profit and total sale:
total profit = <span>9*8-(40+8)=24$
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5 0
3 years ago
Kerille is reading a book at the rate of 4.5 pages per minute. What ordered pair on a graph of his reading rate would represent
viva [34]
This is a linear equation y = mx, where:
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So the equation becomes: y = 4.5.x
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90 = 4.5.x    or x = 90/4.5  and x = 20 minutes
So the ordered pair will be (20,90)



5 0
3 years ago
What is the solution to the equation? 13+x=74
levacccp [35]
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maybe you made a typo when writing the actual problem down? if not, 61 is the answer.
6 0
3 years ago
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