=(8)(3.4)+13.812
=27.2 + 13.812
=41.012
the Answer is 41.012
Answer:
give my about ten mins i got to finish this final exam for math seg 1
Step-by-step explanation:
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
25÷100=0.25
0.25×n=the percentage
Or 0.25n
Or 0.25•n
