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2 years ago

If the point (a, 7) lies on the graph of the equation 5x - y = 8, then a= -3 3 1/5 plz help

Mathematics

1 answer:

aksik [14]2 years ago

8 0

Answer:

a = 3

Substitute the value of point (a,7) in the equation and solve for a

5(a)-7=8

5(a)=8+7

5(a)=15

a = 15/5 = 3

God Bless and stay safe!

- Eli <3

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2 years ago

paris run 3 1/2 laps around the circular track in the school gym. The track has a diameter of 1/2 mile. About how far does paris

fiasKO [112]

Answer:

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Step-by-step explanation:

Remember that circumference of a circle can be calculated with:

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r=radius

We also know that the radius is just a half of the diameter.

So, the radius of the track is (1/2)/2=1/4 miles

Now, use the circumference of a circle formula to find how much she runs in 1 lap.

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3 years ago

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Mama L [17]

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2 years ago

Select the correct answer from each drop-down menu.

Aleksandr [31]

Answer:

Step-by-step explanation:

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2 years ago

Find x. Give reasons to justify your solution. b Lines AB and CD are straight lines.

MArishka [77]

Answer:

x = 28

Step-by-step explanation:

Given that lines AB and CD are straight lines that intersects at O, it follows that the pair of opposite vertical angles formed are congruent.

Thus,

<AOD = <BOC

<AOD = 152°

<BOC = 3x + x + (x + 12) (angle addition postulate)

<BOC = 5x + 12

Since <AOD = <BOC, therefore,

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140/5 = x (division property of equality)

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2 years ago