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balandron [24]
3 years ago
11

Can you guys help and put these in order?

Mathematics
1 answer:
PtichkaEL [24]3 years ago
7 0
-3, -2.5, -3/4, 1/4, 3.1, 16/5, 6. I can’t see the other numbers, so it’s just these
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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
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
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6 0
3 years ago
Read 2 more answers
It says solve for the variable can you explain
jeyben [28]

Answer:

x = 9

Step-by-step explanation:

Since we know that the triangle is a right triangle we also know that the angle would be 90 degrees

However we are only given 56 and 3x+7

Let 3x+7 be u

We know that 56+u=90 so solve for u

u=90-56

u = 34

Now u = 3x + 7 so,

3x + 7 = 34

solve for x,

3x=34-7

3x=27

x=27/3

x=9.

5 0
2 years ago
Sue has 18 sweets.
Norma-Jean [14]
Easy:

((18-x) -5) + ((18+x)➗2)
7 0
3 years ago
Which country like<br> ghana​
vaieri [72.5K]

Answer:

Ghana is a very beautiful country even in the history, Ghana's empire was a very legendary in Africa. There are many countries like Ghana in Africa like Benin, Sierra Leone, Mali, Songhai, Zimbabwe and Togo also Ivory Coast and Niger

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It’s 21.99


Use c=2pi*radius
Diameter divided by 2 = radius
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