Number 7 is 16 and #6 is 29
and 8 is 45
Answer is: 32 nickels and 23 dimes.
<span>x - number of nickels .
y -number of dimes.
two equations in two unknowns:
1) x + y = 55
2) 0,05x + 0,1y = 3,90.
</span>nickel is a five-cent coin.
dime is a ten-cent coin.<span>
solve equation 1) for x and substitute for x in equation 2)
x = 55 - y
0,05</span>·(55 - y) + 0,1y = 3,90<span>2,75 - 0,05y + 0,1y = 3,90
0,05y = 1,15
y = 23.
x = 55 - 23 = 32.</span>
Answer:
8
Step-by-step explanation:
10 + 8 = 18
18 x 2 = 36
85% of 36000 is 30600
9% of 30600 is 2754
30600 - 2754 = 27846
I'm fairly sure that's right, but I wouldn't say no to a second opinion
