There are 62 dimes and 44 nickels.
N + D = 106 (There are 106 coins in all.)
1 nickel = 5 cents.
1 dime = 10 cents.
5*N + 10*D = 840 ($8.40 = 840 cents)
N + D = 106 -------(1)
N = (106 - D)
5*N + 10*D = 840 ---------(2)
5*(106-D) + 10*D = 840
530 - 5*D + 10*D = 840
5*D = 840 - 530
5*D = 310
D = 310/5 = 62
Eq(1) N + D = 106
N + 62 = 106
N = 106 - 62
N = 44
First replace x and y by 3 and 4.
(3*(x)+1)/(4*(y)^2)
((3*(3))+1)/(4*((4)^2)) = (9+1)/(4*16) = 10/64 = 5/32.
5/32 is your answer.
Please mark me as brainliest!
Step-by-step explanation:
6.5r - 7.4= 12.1
6.5r = 19.5
r = 3
D because you need to make the denominators have a common multiple.
Answer:
Slope: 1/5
Step-by-step explanation:
-1,2
4,3
-1 - 2 = -1
-1 - 4 = -5
-1/-5 = 1/5
