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2 years ago

Dan will be 8X years next year. how old was Dan five years ago. give your answer in terms of X

1 answer:

6 0

If Dan is 8x years old next year then he must be 8x-1 years old this year
With the same logic, five years ago from this year, he must be 8x-1-5=8x-6

The answer should be 8x-6

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The circumference of a circular rug is 24.8 meters. What is the area of the rug? Use 3.1 for pi

mestny [16]

Answer:

The area of rug is 48.9 m^2

Step-by-step explanation:

Let's assume radius of rug is r m

we know formula for circumference as

$C=2\pi r$

we are given

C=24.8

and then we can solve for r

$24.8=2\pi r$

$r=3.947$

now, we can use area formula

$A=\pi r^2$

we can plug r

and we get

$A=\pi (3.947)^2$

$A=48.94227$

So,

The area of rug is 48.9 m^2

4 0

2 years ago

7 1/2 divided by 1 2/3

Rina8888 [55]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

3x - y = 2<br>and<br>2x + y = 4

Naddik [55]

$\frac{3}{1}$ Answer:

Step-by-step explanation:

3x-y = 2

2x+y =4

put them into slope intercept form

y=3x-2

y=-2x+4

Now, you can either graph it or use substitution

3x-2 = -2x+4

+2x +2x

5x -2 = 4

+2 +2

5x = 6

5x/5 = 6/5

x = 6/5

3x -2 = y

3(6/5) -2 = y

3 x 6 / 1 x 5 = 18/5

3 3/5 -2 = 1 3/5

Let me know if it's wrong.

Hope this helps

6 0

2 years ago

What is the size of angle x

mixer [17]

Step-by-step explanation:

180-120 = 60 which is the 2nd angle in triangle.

60+50+x = 180

x = 70

5 0

1 year ago

Can two lines be drawn from a point not on a line that will meet the line at a right angle? at a 45° angle? explain each answer.

vichka [17]

I believe the the correct answer would be yes. Two lines can be drawn from a point that is not collinear with a certain line that will meet the line at a right angle or 90 degree angle and at an angle of 45 degrees. We can freely draw any line that would pass through a given point and would cross a given line at any direction giving us different angles and this would include a 90 and 45 degree angle.

5 0

2 years ago