Answer: 60 days
Step-by-step explanation:
To get the number of days that both of them will be washing the cars on thesame day, we have to find the lowest common multiple of 15 and 20. This will be:
Multiple of 15 = 15, 30, 45, 60, 75, 90
Multiples of 20 = 20, 40, 60, 80, 100
Lowest common multiple = 60
Therefore, they'll be Washing the car on thesame day on the 60th day.
-3t+11>20
add 3t to both sides
11>20+3t
minus 20 both sides
-9>3t
divide both sides by 3
-3>t
t<-3
last one
Answer:
Step-by-step explanation:
3 1/5= 3 2/10
4 1/2= 4 5/10
3 2/10+ 4 5/10= 7 7/10
Answer:
64 and 13 I hope this helps
Step-by-step explanation:
Answer:
$32
Step-by-step explanation:
To find the commission, multiply the rate by the sales:
commission = 5% × $640 = $32
He made $32 in commission.
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<em>Additional comment</em>
Many calculators and all spreadsheets can work with percentages directly. If yours can't, or if you can't do this arithmetic mentally, you can use the equivalent decimal or fraction for 5%.
5% = 5/100 = 0.05 = 1/20
Then 5% × $640 = $640/20 = $64/2 = $32.
