a) C = 40 + 30t
b) 280 = 40 + 30t
30t = 240
t = 8
The plumber worked 8 hours
Answer:
You need to try and find the total cost of the food and drink and subtract it from the amount of money Simon pays.
Two cups of coffee costs 2.78 so -
2.78 + 2.78 = 5.56
One piece of cake costs 2.85 so the total amount is
5.56 + 2.85 = 8.41
Now we know the total, we can subtract it from the money given.
10 - 8.41 = 1.59
<u>Simon will get 1.59 in change.</u>
You have to solve the exponent in the parentheses first:
(2^4)^2
(16)^2
=256
Answer:
125 cm
Step-by-step explanation:
<u>Ratio of pieces of the rod:</u>
<u>In total, the rod is equal to:</u>
<u>Since the shortest peace:</u>
<u>Length of the rod:</u>
- 10x = 5* 2x = 5* 25 cm = 125 cm
