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3 years ago

How is y=1/2x+3 and 2y=x+6 equivalent?

Mathematics

2 answers:

MA_775_DIABLO [31]3 years ago

4 0

Multiply the whole equation by 2 and you will get 2y=x+6

frutty [35]3 years ago

3 0

As the second equation is equivalent if you divide the entire equation by 2

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Write a posite or negative number :depositing $85 in a bank account

DedPeter [7]

I do not understand but if you deposit 85 dollars in a bank account it will most likely be positive unless you owe the bank money.

Hope I helped

Brainliest if satisfied

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4 years ago

2x − 2) + (x + 1) + x + (x + 1) = (2x − 9) + (x + 1) + (x + 8) + x,

KengaRu [80]

Answer:

x=1

Step-by-step explanation:

5x=5x x=1

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3 years ago

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Please help

katrin2010 [14]

$\dfrac{n^2+3n+2}{n^2+6n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n^2+2n+n+2}{n^2+4n+2n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n(n+2)+1(n+2)}{n(n+4)+2(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{(n+2)(n+1)}{(n+2)(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{n+1}{n+4}-\dfrac{2n}{n+4}=\dfrac{n+1-2n}{n+4}=\dfrac{1-n}{n+4}$

$Answer:\ \boxed{B.\ \dfrac{1-n}{n+4}}$

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3 years ago

A can do a piece of work in 4 hours and B can do it in 6 hours. How much time would they take working together to finish the wor

Kipish [7]

Answer:

2.4 hours

Step-by-step explanation:

Let total work = X

Rate of work done = X ÷ time

Rate of A = X/4

Rate of B = X/6

If they work together, rate is the sum of their individual rates, i.e.

X/4 + X/6

= (3X + 2X)/12 (taking LCM)

=5X/12

Rate = X/time

5X/12 = X/time

time = X÷(5X/12)

time = X × 12/(5X)

time = 2.4 hours

Shortcut:

Product of individual times/sum of individual times

= (4×6)/(4+6)

=24/10

=2.4 hours

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4 years ago

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Inessa05 [86]

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3 years ago