5x + 2y = 3280
x+y = 785
x = 785 - y
5*(785 - y) + 2y = 3280
3925 - 5y + 2y = 3280
3925 - 3280 - 3y = 0
645 = 3y
y=645/3=215
x=785-215 = 570
Adults - 570 tickets, childs - 215 tickets.
570*5 + 215*2 = 3280
Answer: X = 36.
Step-by-step explanation: There are 360 degrees in a trapezoid. Two angles are 108 degrees. 108 + 108 =216. 360 minus 216 is 144. 2x + 2x = 4x. 144 divided by 4 is 36. Therefore, x =36.
Answer:
10f + 5
Step-by-step explanation:
7f+5+3f (Given)
10f + 5 (combine like terms)
Answer:
$28.8
Step-by-step explanation:
First we need to get the interest on the savings for the 4years. Since it is not compounded, we will use the simple interest (SI) formula.
According to the simple interest formula, SI = Principal × Rate × Time/100
Give principal = $24 rate = 5℅ time = 4years
SI = 24×5×4/100
SI = 480/100
SI = $4.8
Zoe interest for four years will be $4.8.
Amount she has saved for 4years = principal + interest = $24+$4.8
= $28.8
The formula for simple interest is:
We are going to convert the percent (12) into a decimal.
Then, we are going to put the months into years.
Let's plug in the values:
The total amount paid for the trip is $180.81Have a nice day! :)