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weeeeeb [17]
3 years ago
5

How could you use multiplication to find 7+7+7?

Mathematics
2 answers:
Sholpan [36]3 years ago
4 0
7+7+7 is equal to multiplying 7 by 3. (7+7+7=21 and 7x3=21.)
Nuetrik [128]3 years ago
4 0
7x3=21. All multiplication is is repeated addition! Hope I helped!
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kozerog [31]

Answer:

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Step-by-step explanation:

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ch4aika [34]
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snow_lady [41]
I don’t know if I’m 100% correct but I got

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8 0
3 years ago
18) Solve the system. 0.4x - 0.1y = 2 0.2x + 0.5y = 1 A) (5, 0) B) (0, 5) C) (-5, 0) Eliminate D) (3, -10) please help me its ex
Artemon [7]
To solve the set of equations given above, we can use the substitution method where we substitute one equation to the other and solving for one variable. We do as follows:

<span>0.4x - 0.1y = 2
x = 5 + 0.25y

0.2x + 0.5y = 1
</span>0.2(5 + 0.25y)+ 0.5y = 1
y = 0
x = 5

Therefore, the correct answer from the choices is option A, (5,0).
6 0
3 years ago
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