A. C = 17h + 15
b. 83 = 17h + 15
-15 - 15 subtract 15 from both sides
68 = 17h
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17 divide both sides by 17
4=h
They cleaned the house for 4 hours
c. C = 20x
to do this last part, you would put both equations into the calculator under y=, then look at the table to determine when the price is the same. According to the calculator, the price is the same at 5 hours
The given point (t, P) is (0, 1000), and the slope is given as ∆P/∆t = 30. Using the point-slope form of the equation for a line, the equation can be written as
... P = 30t + 1000
Answer:
The interest is $1080 and the amount is $4080.
Step-by-step explanation:
Find an interest by using the formula I=P*i*t, where I is interest, P is total principal, i is rate of interest per year, and t is total time in years.
In this examplee P = $3000, i = 6% and t = 6 years, so
I=P*i*t
I=3000*0.06*6
I=1080
The interest is 1080, therefore the total amount is 4080.
Hope this helps!
Answer:
The percent of time that was spent on reading is 12%
Step-by-step explanation:
To figure this question out, first add up all of the known percentages. So for this question, this would be: 11 + 28 + 22+ 15 + 12, or 88. The total of all the percentages must be equal to 100%. So, subtract the sum of all the known percentages from 100.
100 - 88 = 12%
Hope this helps! ^-^
