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myrzilka [38]
3 years ago
9

At the local pet store, zebra fish cost $2.05 each and neon tetras cost $2.30 each. If Sameer

Mathematics
1 answer:
Tasya [4]3 years ago
7 0

Answer:

7

Step-by-step explanation:

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2 years ago
Shannon walks 2,500 metres in 1 hour 40 minutes. <br> How far does she walk in one minute?
stich3 [128]

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25m

Step-by-step explanation:

Shannon's rate is 2,500m/100min. Simplifying, we see that this is equal to 25m/1min.

So, she walks 25 m in one minute.

4 0
2 years ago
Which theorem is correct
kogti [31]

Answer:

The SSS theorem

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How to distribute like terms
Elza [17]
Alright, for 10, let's see 2(x+3). Use the distributive property to multiply 2 with x, which is 2x. Then, multiply 2 with 3, which is 6. Add them together to get 2x+6. For the second part, 4 times x is 4x and 4 times negative 2 is -8. Add them all up and you get 2x+6+4x-8=6x-2. Remember that you can't add a variable with other variables/just numbers, and a minus sign in front of terms in parenthesis means that everything in the parenthesis is negative!
4 0
3 years ago
Use the substitution method to solve the system of equations
PilotLPTM [1.2K]

You solve the substitution method to solve a system of equality by expressing one variable in terms of the other using one equation, and then plugging this expression in the other(s).

In this case, the first equation gives us a way to express n in terms of m. So, we can replace every occurrence of n in the second equation with the given formula.

The result is

14m+2n=-8 \iff 14m+2(-7m-4)=-8 \iff 14m-14m-8=-8 \iff -8=-8

So, the second equation turned to be an equality, i.e. an equation where both sides are the same.

This implies that the system has infinitely many solutions, because every couple (n,m) such that n=-7m-4 is a solution to the system, because it satisfies both equations: the first is trivially satisfied, whereas the second is an identity, and as such is satisfied by any value of the variable.

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2 years ago
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