3 years ago

Which word sentence represents the equation?

Mathematics

2 answers:

JulsSmile [24]3 years ago

3 0

C is the answer to your question

Karolina [17]3 years ago

3 0

It's C. Six times some number plus 3 is 42
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A. The sum of 3 and six times some number is 42. X

B. Three plus 3 times some number is 42. X

C. Six times some number plus 3 is 42.

D. Six times the sum of a number and 3 is 42. X
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Solve this equation, and show work. worth 40 points.

ioda

Answer:

$r=-3/5=-0.6$

Step-by-step explanation:

We have the equation:

$6^{-3r}=6^{2r+3}$

Since their bases are the same, the exponents must be equivalent. So:

$-3r=2r+3$

Solve for r, subtract 2r from both sides:

$-5r=3$

Divide both sides by -5:

$r=-3/5=-0.6$

So, the value of r is -3/5.

And we're done!

7 0

3 years ago

The mr William two questions please!

melamori03 [73]

well, in short, the students and chaperones are at a 2 : 9 ratio, and we know there are 171 students, how many chaperones then, so long they maintain a 2:9 ratio?

$\bf \cfrac{chaperones}{students}\qquad 2:9\qquad \cfrac{2}{9}\qquad \qquad \cfrac{x}{171}=\cfrac{2}{9}\implies 9x=2(171) \\\\\\ 9x=342\implies x=\cfrac{342}{9}\implies x=38$