Answer:
$315
Step-by-step explanation:
You are going to want to use the simple interest formula for this. The one below is modified for solving the interest earned.
<em>I = interest amount</em>
<em>P = principal amount</em>
<em>r = interest rate (decimal form)</em>
<em>t = time</em>
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Now we can plug in the values into the equation:
This means that Rachel earned $315 worth of interest in the 15 year period.
Answer:
Answer is c
Step-by-step explanation:
Solve for x
To solve for x, set the left hand side equal to 0 and solve for x with the quad equation
To find the percent of 15 out of 60, you have to divide fifteen by sixty.
Then, you multiply your answer by 100. (We do this because 100 percent is a exact amount. 100% of sixty is...well, sixty.)
15 / 60 = 0.25
Now, we can multiply 0.25 by 100:
0.25 * 100 = 25 (basically just moving the decimal two places to the right.)
Next, add a percent sign:
25%, is your answer.
15 is 25% of 60.
Answer: each candy bars costs 4 dollars
Step-by-step explanation:
subtract 3 from 19 then divide the answer by 4
