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Romashka-Z-Leto [24]
3 years ago
10

What is the LCM for 28 42 and 70

Mathematics
1 answer:
NeTakaya3 years ago
3 0
280 because 70 times and number has a 0 in the ones place and 28 × 10 is 280. 280 is also a multiple of 42
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Explain answer !! <br><br> ( WILL GIVE BRAINLEST)
Ganezh [65]

Answer:find the solution to the system of equations below.start by adding the equation

{-2x+2y=-8

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1----  y= x -4

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4 0
3 years ago
Serena wants to solve the following system of equations in the most efficient way.
Marianna [84]

Answer:

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Step-by-step explanation:

we have

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we know that

To solve the system of equations in the most efficient way, solve for x equation B and then substitute the value of x in equation A

so

x=31-7y ----> equation C

substitute equation C in equation A

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solve for y

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x=31-7(4)=3

The solution is (3,4)

therefore

Serina should have solved for x in the second equation because it has a coefficient of 1.

3 0
3 years ago
Read 2 more answers
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