Answer:9 nickels and 19 dimes.
Step-by-step explanation:
Let
be the number of nickels Kay has.
Let
be the number of dimes Kay has.
Value of
nickel is $![0.05](https://tex.z-dn.net/?f=0.05)
Value of
nickels is $![0.05n](https://tex.z-dn.net/?f=0.05n)
Value of
dime is $![0.1](https://tex.z-dn.net/?f=0.1)
Value of
nickels is $![0.1dn](https://tex.z-dn.net/?f=0.1dn)
Given that Kay has a total of
coins.
So,
...(i)
Given that Kay has a total value of $![2.35](https://tex.z-dn.net/?f=2.35)
So,
...(ii)
Using (i) and (ii),
![0.05n+0.1(28-n)=2.35\\0.05n+2.8-0.1n=2.35\\2.8-2.35=0.05n\\0.45=0.05n\\n=9](https://tex.z-dn.net/?f=0.05n%2B0.1%2828-n%29%3D2.35%5C%5C0.05n%2B2.8-0.1n%3D2.35%5C%5C2.8-2.35%3D0.05n%5C%5C0.45%3D0.05n%5C%5Cn%3D9)
![d=28-n=28-9=19](https://tex.z-dn.net/?f=d%3D28-n%3D28-9%3D19)
Answer:
O D. Luis had 6 pencils. He placed them in 4 groups. How many were in each group?
Step-by-step explanation:
this makes more sense, since he had 6 pencils and put them in 4 different groups. so, 6 *4 = 24 c:
Answer:
81/50
Step-by-step explanation:
=8/10+82/100
=8/10+41/50
=40+41/50
=81/50
Y= 2/2 is the slope of the equation