Sara has a jar filled with 135coins, which consists only of quarters and nickels. If sara has a total of $22.75 in the jar which of the following is the number of nickels sara has in the jar? A.25
B.55
C.80
D.130

80 quarters

55 nickels

Explanation:

Equation 1

q + n = 135

q = 135 - n

Also we know the dollar values: 0.25q + 0.05n = 22.75 ,call this equation 2

Substituting in equation 2, we get

0.25 (135-n) + 0.05n = 22.75

33.75 - 0.25n + 0 05n = 22.75

-0.25n + 0.05n = 22.75 - 33.75

-0.20n = -11

n = 11/0.20 = 55 = nickels

If q + n = 135

q = 135 - 55 = 80 = quarters

answer: the mildest forms of push polling are designed merely to remind voters of a particular issue. for instance, a push poll might ask respondents to rank candidates based on their support of an issue in order to get voters thinking about that issue. many push polls are negative attacks on other candidates.