Juan received a $45.25 gift card for a photo center. He used it to buy prints that cost 25 cents each. The remaining balance, B
1 answer:
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Answer:
19
Step-by-step explanation
Let the sum of n terms of A.P. = Sn
Answer:
The person invested $3500 at 7% and $2500 at 5%
Step-by-step explanation:
We can say that because the investment is equal both in one as in another, where x is the income from the investment.
Solving the equation we have:
Then to get the incomes:
At 7%:
And at 5%:
Finally we can demonstrate the answer because the income at 7% + income at 5% are 3500+2500=$6000