Marcella burgess deposited $15000 for two months in a money market account that pays simple interest for the first moth marcella earned 3.87 annual interest she earned 3.47 annual interest for the second month interest is not compounded what total interest did marcella earn in two months

  $91.76

Step-by-step explanation:

Interest the first month was ...

  I = Prt

  I = $15000(0.0387)(1/12) = $48.375 ≈ $48.38

Interest in the second month was ...

  I = $15000(0.0347)(1/12) = $43.375 ≈ $43.38

So the total interest amount is ...

  $48.38 +43.38 = $91.76

Marcella earned $91.76 in two months.

Comment on rounding

We have assumed that Marcella's account statement will report the interest rounded to 2 decimal places (cents). Hence she obtains the benefit from rounding for both months.

If there is no statement, so that rounding is not required until the end of the second month, then she may not have that extra penny in her account.

answer: $1794

step-by-step explanation:

third choice down

step-by-step explanation:

the first inequality is based on the number of adults and campers, and the second inequality is based on the cost of feeding both the adult and the camper.

we know that there is room for 525 people max.   it's ok to have less than 525, but it's not ok to have more than 525, so the inequality is less than or equal to.   the number combination of adults (x) and campers (y) cannot exceed this 525 max.   therefore:

x + y ≤ 525

now we talk about cost.   it costs $9 to feed one adult, so depending upon the number of adults you have (x) depends upon how much it will cost to feed that number of adults.   same with the campers, who cost $5 to feed.   the adults can be represented by 9x and the campers can be represented by 5y.   since the budget cannot exceed 1,200, the second inequality is:

9x + 5y ≤ 1200