N=2p
(n+7) + (p+7) = 68
2p + 7 + p + 7 = 68
3p + 14 = 68
3p = 68 - 14 = 54
p=54/3=18
n=2p=36
Check: (18+7)+(36+7)=25+43=68 good
We inspect each of the choices and determine which among them is the best answer by multiplying the given time frames to the speed given.
(a) (3 2/5 miles/day) x (4 days) = 13.6 miles (wrong)
(b) (3 2/5 miles/day) x (7 days) = 23 4/5 miles (correct)
(c) (3 2/5 miles/day) x (10 days) = 34 miles (correct)
(D) (3 2/5 miles/day) x (31 days) = 105.4 miles (wrong)
Thus, the answers are B and C.
The additive inverse of a complex z is a complex number

so that

Finding

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Tags: <em>complex number additive inverse opposite algebra</em>
To solve this we are going to use the simple interest formula:

where

is the final amount.

is the initial investment.

is the interest rate in decimal form.

is the time in years.
Investment A. We know that the initial investment is $10,000, so

. We also know that the number of years is 5, so

. To convert the interest rate to decimal form, we are going to divide the rate by 100%

Lets replace those values in our formula to find

:


Investment B. 
,

, and

.



We can conclude that
investment A will be worth than investment B at the end of the investment period.
<em>Answer:</em>
<em>The answer is 83</em>
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<em>Hope this helps:3</em>
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