Answer:
1555.61 birrs
Step-by-step explanation:
Perform this operation:
83.5 liters 18.63 birr
---------------- * ----------------- = 1555.61 birrs This was the total amount
1 1 liter of the bill.
Substraction is a comutative operation
x + 3x + 4 = 72
4x + 4 = 72
4x = 68
x = 68 / 4
x = 17.
3/4 of an hour is 45 minutes. His brother takes 1/3 of the time, 1/3 of 45 min is 15 min. 5*15=75 min or 1 + 15/60 = 1.25 hours
Answer:
The correct answer is -29/3
Answer:
The number of cones sold was 88
Step-by-step explanation:
Let
x------> the number of cones sold
y----> the number of sundaes sold
we know that
----> equation A
----> equation B
using a graphing tool
we know that
The solution of the system of equations is the intersection point both graphs
The intersection point is (88,84)
see the attached figure
therefore
The number of cones sold was 88
The number of sundaes sold was 84