3 years ago

Lisa has a recipe that needs 4 of a teaspoon of butter for every 3 cups of milk. If Lisa increases the

Mathematics

1 answer:

ser-zykov [4K]3 years ago

4 0

Answer:

1.25 teaspoon of butter per 5 cups of milk

3/4 tsp butter = 3 cups milk

5/4 tsp butter = 5 cups milk

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bezimeni [28]

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
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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

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