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Mathematics

1 answer:

Tamiku [17]2 years ago

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Answer:

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Step-by-step explanation:

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-1/3x+2x=3 3/4 what does the variable represent?

svet-max [94.6K]

Start off by combining like terms on the LHS (the terms with x in them).

So we get $\frac{-1}{3}x+2x= \frac{-1}{3}x+ \frac{6}{3}x= \frac{-5}{3}x$

Replacing this result with what we had before on the LHS, we get $\frac{-5}{3}x=3 \frac{3}{4}= \frac{9}{4}$

⇒Solve for x (divide both sides $\frac{-5}{3}$ )
⇒Don't forget about reciprocity rules when dividing. This is the same as multiplying both sides by $\frac{3}{-5}$

⇒ $x= \frac{9}{4}( \frac{3}{-5})
$
⇒ $x= -\frac{27}{20}=-1\frac{7}{20}$ ***This is a proper fraction

4 0

2 years ago

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Are the graphs of the lines in the pair parallel? Explain. y=2\3x-17 4x-6y=-7

Papessa [141]

<span>y=2\3x-17and 4x-6y=-7 implies - 6y= - 4x -7, and then y= (-4/-6)x +7/6 and so
y=2/3x+7/6

but when we have y=ax+b and y=a'x+b', the two lines are parallels if a=a', in our case 2/3=2/3 the lines are parallel
</span>

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3 years ago

A patient is to receive 1.5 grams (g) of an antibiotic in 3 equal

nordsb [41]

1.5 g = 1500 mg

1500 / 250 = 6

the patient should take 6 tablets each dose.

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2 years ago

I NEED HELP ASAP!!!!!

zavuch27 [327]

√y

Step-by-step explanation:

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