Tina is saving to buy a notebook computer. She has two options. The first option is to put $400 away initially and save $20 ever
2 answers:
Answer:
The first option is to put $400 away initially and save $20 every month. Let she saves for x months. Equation becomes;
The second option is to put $100 away initially and save $40 every month. Let she saves for x months. Equation becomes;
Equating both as equal we will get the number of months.
=>
=>
x = 15
Hence, it will take 15 months to save the same amount.
And amount saved will be =
= $700
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Answer:
<em>In the next year, Anthony worked 2,084 hours</em>
Step-by-step explanation:
Anthony worked 1,697 hours in 2010.
We also know Anthony worked 22.8% more hours than in 2010.
The problem requires to calculate how much did Anthony work in the next year.
It can be calculated as follows:
Take 22.8% of 1,697:
Now calculate by adding it to the original number of hours:
1,697 + 387 = 2,084 hours
In the next year, Anthony worked 2,084 hours
Answer:
The half life of the car is 3.98 years.
Step-by-step explanation:
The value of the car after t years is given by the following equation:
In which V(0) is the initial value and r is the constant decay rate, as a decimal.
The value of a certain car decreases by 16% each year.
This means that
So
What is the 1⁄2-life of the car?
This is t for which V(t) = 0.5V(0). So
The half life of the car is 3.98 years.