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3 years ago

10

Mai runs around a 400-meter track at a constant speed of 200 meters per minute. How many minutes does it take Mai to complete 4

laps of the track?

1 answer:

Margaret [11]3 years ago

4 0

Answer:

8 min

Step-by-step explanation:

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I need help - Geometry - 15 points + brainlyist - 1 question -

lara [203]

Answer:

$120 = (15 + 22)x + 4 + 5 \\ 120 - 9 = 37x \\ 111 = 37x \\ x = 111 \div 37 = 3 \\$

$15x + 5 = 3 \times 15 + 5 = 50$

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3 years ago

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I am buying carpet for a room with an area of 230.The width is 12 1/2feet what is the length

Arada [10]

Answer:

the length is 18.4

Step-by-step explanation:

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3 years ago

What happens to the volume of a sphere when the radius is multiplied by 4?

tekilochka [14]

Vsphere=(4/3)pir^3
Voriginal=(4/3)pir^3

when radius is multiplied by 4
replace r with 4r
Vnew=(4/3)pi(4r)^3
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Vnew=(64)(4/3)pir^3
Vnew=(64)(Voriginal)
the volume is 64 times the original

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3 years ago

If C is between A and B, then answer the following if AB=40, AC= 2x+10, CB= 3x-5

Marat540 [252]

If C is between A and B, then, we can write the equation

$AB = AC + CB$

Substitute the value of AB and the expressions for AC and CB in terms of x.

$40 = (2x+10)+(3x-5)$

We can now solve for x.

$40-10+5= 2x+3x$

$35=5x$

Dividing by 5.

$7=x$

$AB=40$

$AC=2(7)+10$

$AC=14+10$

$AC=24$

$BC=3(7)-5$

$BC=21-5$

$BC=16$

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4 years ago

Need this asap pleaseeeee

Alex787 [66]

Answer:

615.6

Step-by-step explanation:

14 to the power of 2 is 196

196 multiplied by pi is 615.6

Hope this helps!

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3 years ago