Answer: £20.
Step-by-step explanation:
Let the old price = £x
Percent increase. = 10%
Increment. = 10% of £x
= 10x/100
Now new price = £22
To determine the old price we have
x + 10x/100. = 22
We now multiply everything by 100 to make it a linear expression
100x + 10x = 2200
110x = 2200, therefore
x. = 2200/110
= £20
Therefore, the price before the increase. = £20.
The z-score corresponding to a cumulative area of 1 - 0.0122 = 0.9878 is 2.25.
Therefore the z-score corresponding to a cumulative area of 0.0122 is the negative of 2.25 = -2.25.
Answer:
2.73
Step-by-step explanation:
It is given that Lisa paid 43.95 for 16.1 gallons of gasoline.
So, the cost of 16.1 gallons of gasoline is 43.95.
Hence, the cost of gasoline per gallon is 43.95/16.1 = 2.7304347.
Now, it is required to round this value to the nearest hundredth.
Therefore, the cost of gasoline per gallon rounded to the nearest hundredth is 2.73. (Answer)
Treat??
hope this helps lol
