Answer:
75.26
Step-by-step explanation:
Most sales taxes work by not being calculated until cash in some form changes hands. So you take the discount first and then you add the sales tax on the new amount.
Take the discount first
Original cost = 79.74
Discount amount = 79.74 * 12% = 79.74 * 12/100 = 9.57
New price = 79.74 - 9.57 = 70.17
Now you are ready to add on the sales tax
70.17 * 7.25/100 = 5.09
The total is 70.17 + 5.09 = 75.26
For this case we can make the following rule of three:
21 ------> 70%
x --------> 100%
Clearing x we have:
x = (100/70) * (21)
Rewriting we have:
x = (10/7) * (21)
x = 30
Thus,
21 is 70% of 30
Answer:
21 is 70% of 30
About 3 gallons of blue paint will be needed because if you add 175+175 it equals 350 and then add another 175 it equals 525.
Answer:
f(7) = - 25
Step-by-step explanation:
To evaluate f(7) substitute x = 7 into f(x), that is
f(7) = - 5(7) + 10 = - 35 + 10 = - 25
