Maybe c)8 im not sure though
Skippy should invest $ 7500 in account offering 4 % interest and $ 2500 in account offering 8 % simple interest
<em><u>Solution:</u></em>
Given that Skippy has a total of $10,000 to split between two investments
One account offers 4% simple interest, and the other account offers 8% simple interest
Total interest earned = 500
Number of years = 1
Let the principal with rate of interest 4 % is x
So the principal for rate of interest 8 % is 10000 - x
Total interest earned = simple interest for 4 % interest + simple interest for 8 % interest
Simple interest is given as:

Where "p" is the principal and "r" is the rate of interest and "n" is the number of years
Therefore,


Therefore skippy should invest $ 7500 in account offering 4 % interest
And skippy should invest (10000 - x) = (10000 - 7500) = $ 2500 in account offering 8 % interest
Answer:
x = 4
Step-by-step explanation:
expand out the brackets to get 7 - 2x = 2x - 8 - 1
we can then add 2x to both sides to get 7 = 4x - 8 - 1
add 9 to both sides to get 16 = 4x
divide both sides by 4 to get x = 4
hope that helps
The correct answer is D. You can solve this by multiplying the values.
100 cm = 1 meter
210 cm = 2.1 meters (multiply both sides by 2.1)
Mary uses 2.1 meters of thread so far, meaning she has 10-2.1 = 7.9 meters left
7.9 meters = (7.9 m)*(100 cm/1 m) = 790 cm
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Alternate route:
10 meters = (10 m)*(100 cm/1 m) = 1000 cm
Mary uses 210 cm out of 1000 cm total, so she has 1000-210 = 790 cm left.
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<h3>Answer: 790 cm</h3>