3 years ago

Evaluate 17-14÷(-2)+(-1)

Mathematics

2 answers:

katrin2010 [14]3 years ago

7 0

Answer:

Step-by-step explanation:

jeyben [28]3 years ago

3 0

23 is right!!!!!!!!!!!!!

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Robert is writing a paper for language arts class he can write one third of the page in 1/4 of an hour at what rate is Robert wr

Mars2501 [29]

He's writing one paper every 3/4 of an hour

1/3: 15 minutes
2/3: 30 min
3/3: 45 minutes

Or, one paper every 45 minutes/ 3/4 of an hour

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3 years ago

Which is the best first step when solving the following system of equations? x + y = 3. 4 x minus y = 7. Multiply the first equa

Kryger [21]

Answer:

Multiply the first equation by 4.

Step-by-step explanation:

4(x+y=3) which gives

4x+4y=12

and

4x-y=7

Then subtract the two equations and the x variable will be eliminated.

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3 years ago

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Can u help me on how to figure out the answer for 12+3/8c=8

Likurg_2 [28]

Answer:

c = 32/3

Step-by-step explanation:

Eliminate the fraction by mult. all terms by 8: 96 + 3c = 64.

Subtract 64 from both sides, obtaining: 3c = 32. Solving for c, c = 32/3.

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3 years ago

10. Simplify the rational expression by rationalizing the denominator. 3 sqrt 160/sqrt 1350x A) 2 sqrt 15x/15x B) 3 sqrt 160/135

Viefleur [7K]

The simplified expression by rationalizing the denominator is (C) $\frac{4 \sqrt{15x} }{15x}$ .

First we must simplify the expression:
$\frac{3 \sqrt{160} }{\sqrt{1350x} } = \frac{12 \sqrt{10} }{15 \sqrt{6x} } = \frac{4 \sqrt{10} }{5 \sqrt{6x} }$

Then we factor the rational parts and cancel it out:
$\frac{4 \sqrt{2} \sqrt{5} }{5 \sqrt{2} \sqrt{3x} } = \frac{4\sqrt{5} }{5\sqrt{3x} }$

Then we rationalize the expression:
$\frac{4\sqrt{5} }{5\sqrt{3x} } * \frac{\sqrt{3x} }{\sqrt{3x} } = \frac{4 \sqrt{15x} }{5*3x} = \frac{4 \sqrt{15x} }{15x}$

Finally, the simplified expression by rationalizing the denominator is (C) $\frac{4 \sqrt{15x} }{15x}$ .

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3 years ago

Solve for b: 16b = 12 A. b = 28 B. b = 3/4 C. b = 4/3 D. b = 1/4

schepotkina [342]

Answer:

16b=12

Step-by-step explanation:

divide both sides by 16

so twelve divide 16 is B

8 0

2 years ago

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