Its probaby 1 over t^5 or <span>t^-5</span>
Answer:
10: 5%
11: 11.1%
12: 11.1%
Step-by-step explanation:
take each one and do its chances.
10: 1/3 * 1/3 * 1/2
11: 2/3 * 1/2 * 1/3
12: 1/3 * 1/2 * 2/3
:)
To write in the mixed fraction you have to simply divide 8 and 4.
To right in the mixed number we need to know numerator, denominator and divisor.
So in your problem our divisor is 4,
so now lets divide it
So, now we have to write it as mixed number..
mixed number will be
Hope this helped you.. :)
Answer: 12
Step-by-step explanation:
difference = subtraction
and = addition
times = multiplication
Therefore,
7x - 4 = 80
7x = 84
x = 12
Ryan was 8 when his parents invested $4000 in a certificate of deposit that pays 6%. If Ryan leaves the account alone until the investment doubles, how old will he be? (Assume that the interest is not compounded.)
<span>This one has a twist to it in that it tells you that the interest is not compounded. </span>
<span>They need to earn $8,000 - $4,000 = $4,000 in interest. </span>
<span>They earn $4,000 X 6% = $240 in interest per year. </span>
<span>$4,000 / $240 = 16.67 </span>
<span>16.67 + 8 = 24.67 </span>
<span>Ryan will be 24 and 8 months old when the investment doubles. </span>
<span>2.)Benjamin has $6000 invested in two accounts. One earns 8% interest per year, and the other pays 7.5% interest per year. If his total interest for the year is $472.50, how much is invested at 8%? </span>
<span>X = the amount invested at 8% </span>
<span>($6,000 - X) = the amount invested at 7.5% </span>
<span>So: </span>
<span>.08X + .075(6,000 - X) = $472.50 </span>
<span>Now solve: </span>
<span>.08X + 450 -.075X = $472.50, this reduces to </span>
<span>.005X = $22.50, which finally reduces to </span>
<span>X = $4,500 </span>
<span>So $6,000 - X = $1,500 </span>
<span>So the answer is: $4,500 is invested at 8% </span>
<span>Test the result </span>
<span>$4,500 X 8% = $360.00 </span>
<span>$1,500 X 7.5% = $112.50 </span>
<span>$360.00 + $112.50 = $472.50, and you've proved your answer</span>