Answer:
Step-by-step explanation:
its a variable. this one represents x. a variable is something that represents an unknown value.
Answer:
Ellie drove 90 miles in three hours.
Step-by-step explanation:
The answer is 32.07. Rounded to the nearest tenth is 32.1
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
The length of the inseam to be removed from the pant is 3 2 / 3 inches.
<h3 /><h3>How to find the length to be removed?</h3>
The length of the pant he bought is 34 inches and it was too long.
He wants the length to be 30 1 / 3 inches long.
Therefore, the amount of length to be removed can be calculated as follows;
34 - 30 1 / 3
Hence,
Therefore, the number to be removed is 3 2 / 3 inches
learn more on length here: brainly.com/question/11427600
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