Answer:
Step-by-step explanation:
3n+15=75
three times a number is 3n. +15 is 15 more.
3n+15=75 subtract 15 from both sides to get the 3n alone
3n=60 divide by 3 to get the n by itself
n=20
Answer:
$14.56
Step-by-step explanation:
<u><em>Steps to answering this question </em></u>
- Determine the total number of comics bought. This can be done by dividing the total amount spent on comics by the unit price of a comic
- Determine the selling price of the comic
- multiply the amount of comics bought by the selling price
the total number of comics bought = total amount spent on comics / per unit price of comics
$20.16 / $0.72 = 28
selling price = 0.72 - $0.20 = $0.52
Total amount received = selling price x total comics bought
$0.52 x 28 = $14.56
Answer:
99°
Step-by-step explanation:
When straight lines intersect, vertical angles appear.
Vertical angles are ALWAYS equal in measure, whether the lines are parallel or not.
Answer:
3
Step-by-step explanation:
if m is the number of months
Beckett: 90 + 25m
Lakota Hills 45 + 40m
so 90 + 25m = 45 + 40m
40m - 25 = 90 - 45
15m = 45
m = 45/15 = 3
To find the price, we need to find the perimeter of the room:
2(12) + 2(17) = 24 + 34
The perimeter is 54
54*0.64 = 34.56
It will cost $34.56
