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azamat
3 years ago
15

2x+7y= -5 5x - 7y = 14

Mathematics
2 answers:
il63 [147K]3 years ago
8 0

Answer:

19

Step-by-step explanation:

Jlenok [28]3 years ago
5 0

Let's solve for x:

2x+7y=−5

Step 1: Add -7y to both sides.

2x+7y+−7y=−5+−7y \\ 2x=−7y−5

Step 2: Divide both sides by 2.

\frac{2x}{2}  = \frac{7y−5}{2}\\ x=  \frac{ - 7}{2}  y+ \frac{ - 5}{2}

Therefore, the answer for the first one will be x = -7/2 y + -5/2.

Let's solve for x.

5x−7y=14

Step 1: Add 7y to both sides.

5x−7y+7y=14+7y \\5x=7y+14

Step 2: Divide both sides by 5.

\frac{5x}{5} = \frac{7y + 14}{5} \\ x= \frac{7}{5} y+ \frac{14}{5}

Therefore, the answer for the second one will be x = 7/5 y + 14/5

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Step-by-step explanation:

2 2/3

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<em>The</em><em> </em><em>final</em><em> </em><em>answer</em><em> </em><em>becomes</em><em> </em><em>1</em><em>6</em>

<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em>

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What is the source of Yangtze river​
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3 years ago
The time is 2:46 PM. What is the measure of the angle that the minute hand swept through since 2:00 PM?
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The minute hand has swept through 46 minutes on the clock. You have to set up a ratio to solve this:

\frac{46\ minutes}{60\ minutes} = \frac{x\ degrees}{360\ degrees}

You can compare the 60 minutes on a clock to 360 degrees because 60 minutes on a clock is one whole rotation. So then, you cross multiply and simplify:

\frac{46\ minutes}{60\ minutes} = \frac{x\ degrees}{360\ degrees}\\\\46*360=x*60\\16560=60x\\276=x

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4 0
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Plz help! what is the end of behavior of f(x)?
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Step-by-step explanation:

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Let's take a look at each end.

As x approaches negative infinity:

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Therefore, as x\rightarrow-\infty, our function f(x) is increasing and increasing up towards positive infinity.

Therefore, the end behavior at the left will be:

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As x approaches (positive) infinity:

As x approaches the right towards positive infinity, we can see the that graph is also shooting straight upwards.

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