14 dollars because it’s only 75 % out of. 8
So first create and define your variables:
Z = amount of zebra fish
N = amount of neon tetras
Now create your equations:
2z+2.15n=31.20
z+n=15
This is your system. There are multiple methods to use but in this problem I’ll use the substitution method by simplifying the bottom equation.
2z+2.15n=31.20
z=15-n
Now I’ll plug the bottom equation into the top one.
2(15-n)+2.15n=31.20
And just solve from here.
30-2n+2.15n=31.20
0.15n=1.20
n=8
So he bout 8 neon tetras, and 15-8= 7, so he bought 7 zebra fish
Answer:
110
Step-by-step explanation:
m = 4a + 2c
a = 25, c = 5
m = 4(25) + 2(5)
m = 100 + 10
m = 110 meatballs
Answer:
Step-by-step explanation:
