3 years ago

What’s the answer for 18 and 19?

Mathematics

1 answer:

kiruha [24]3 years ago

5 0

Answer:

18. 3,0 19. 0,5

Step-by-step explanation:

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June was thinking of a number. June doubles it, then adds 18 to get an answer of 90.7. What was the original number?

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Answer:

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Step-by-step explanation:

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3 years ago

A student is trying to solve the system of two equations given below: Equation P: a + b = 6 Equation Q: 4a + 2b = 19 Which of th

Marrrta [24]

Answer:

$-4(a + b = 6)$

Step-by-step explanation:

Given

$a + b = 6$

$4a + 2b = 19$

Required

Eliminate a

Multiply the first equation by -4

$-4(a + b = 6)$

Add to the second equation

$-4(a + b = 6) + (4a + 2b = 19)$

Solve brackets

$(-4a -4b = -24) + (4a + 2b = 19)$

Open bracket

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$-4b + 2b = -24 + 19$

At this point, a has been eliminated;

From the list of given options, the option that answers the question is $-4(a + b = 6)$

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307.85
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