<u>Find cost of a ticket:</u>
40% = $5.00
1% = $5 ÷ 40 = 0.125
100% = 0.125 x 100 = $12.50
The cost of a ticket is $12.50
<u>Find 20% of two tickets:</u>
Two tickets cost $12.50 x 2 = $25
20% of $25 = 0.25 x $25 = $5
Answer: 20% of two tickets cost $5
The answer is B, C, and D. Like terms are terms with all the same variable, so 5x and -x are like terms.
C is correct. If we add -x to 5x, we get 4x. The other numbers remain unchanged because they have no like terms.
D is correct. Applying the rule of like terms, which is that like terms are numbers with the same variable, only add together numbers with the same variable.
Hope this helps!
The answer is: APR = 10.56%
Explanation:
Using an excel spreadsheet and the RATE function, we can calculate the monthly interest rate of buying the car:
=RATE(72,-489,25995)
= 0.8803% monthly interest rate
Then we multiply the monthly interest rate by twelve to get the APR:
APR = 0.8803% x 12 = 10.56%
Answer: It doubles
Step-by-step explanation:
Inflation erodes the value of a currency thereby reducing the purchasing power that customers have as they will only be able to buy less gods and services for the same amount as before.
An increase in inflation is directly proportional to a decrease in purchasing power which means that if the inflation rate doubles, the decrease in purchasing power doubles as well.
For instance, if inflation is 10%, the value of a dollar becomes 0.9c. If Inflation doubles to 20%, the dollar goes to 0.8c. Meanwhile the purchasing power would have gone from $1 to 0.8c which would translate to a 20% decrease.
Answer:
Option C is right
Step-by-step explanation:
Given are two samples
I group has sample size 90, mean = 9.2 and std dev =0,.37
II group has sample size 70, mean = 7.3 and std dev = 0.58
we find that mean difference i.e. difference between mean hours of sleep between two groups
= 9.2-7.3 = 1.9
Std error for difference = 0.0620
Since sample size is sufficiently large we can use Z critical for 99%
i.e. 2.58
Margin of error =±2.58(0.062)
=0.16
Hence confidence interval 99% for difference in hours of sleep
= (1.9-0.16,1.9+0.16)
=(1.74, 2.06)