3 years ago

-2x + 5y=12 for y helpp plsss

Mathematics

2 answers:

snow_tiger [21]3 years ago

7 0

the answer to the question is x=-7x/2

icang [17]3 years ago

4 0

Y=12/5 + 2x/5

Explanation:

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4 years ago

3(-4b+1) = 15 pls help asap

Evgen [1.6K]

Answer:

b = -1

Step-by-step explanation:

3(-4b+1) = 15

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2 years ago

Read 2 more answers

Please Help!!!

suter [353]

So, 1/3 of something is 21.

1/3 of x is not the full x: we know that the x is 21 and even more. So, it must be bigger than 21, since it has 21 and something else (and since 21 is not negative): the solution MUST be greater than 21.

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3 years ago

If XY = 5x-3 and XZ=44, find x and the value of YZ

mixer [17]

The midpoint of a line divides the line into equal halves.

The value of x is 5
The value of YZ is 22

Given that:

$XY = 5x -3$

$XZ = 44$

Y is the midpoint of XZ. So:

$XZ = 2 \times XY$

$44 = (5x - 3 ) \times 2$

$44 = 10x - 6$

Collect like terms

$10x = 44 +6$

$10x = 50$

Divide both sides by 10

$x = 5$

Recall that: Y is the midpoint of XZ

This means that:

$YZ = \frac12 XZ$

$YZ = \frac12 \times 44$

$YZ = 22$

Hence, the value of x is 5 and YZ is 22