Answer: the old price for 1 liter is $0.3
Step-by-step explanation:
Let x represent the old price for 1 liter of petrol.
Last week a man bought 20 liters at the old price. This means that the total amount that the man paid for 20 liters is 20x.
The cost of petrol rises by 2 cents a liter. This means that the new price per liter is x + 2/100 = x + 0.02
This week he bought 10 liters at the new price. This means that the total amount that the man paid for 10 liters is
10(x + 0.02)
= 10x + 0.2
Altogether, the petrol costs $9.20. This means that
20x + 10x + 0.2 = 9.2
30x + 0.2 = 9.2
30x = 9.2 - 0.2
30x = 9
x = 9/30
x = 0.3
Answer: $35.35
Step-by-step explanation:
Facts
3 items
item 1: 8.95
item 2: 11.49
item 3: 12.75
6.5% sales tax
Step 1: Find the total cost of the items ,before tax
8.95+11.49+12.75= 33.19
Step 2: Apply the sales tax
6.5% of 33.19 = 2.15735 --> approximatley $2.16
Step 3: Add the sales tax amount to the total cost of the items to find the final total cost.
$33.19+$2.16= $35.35
Hence the answer is B
Hope this helps !! :)) And brainliest would be appreciated
Answer:
The measurement of the angle is 74.65
Step-by-step explanation:
We have the adjacent and hypoteneuse; the trig function will be cosine
