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solmaris [256]
3 years ago
13

An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest cir

cle that could fit in the square as, shown below.
What is the circumference of the copper circle? Use 3.14 to represent pi.

A. 3.14 inches
B. 31.4 inches
C. 15.7 inches
D. 78.5 inches

Mathematics
1 answer:
Ivan3 years ago
4 0

Answer:

C

Step-by-step explanation:

The side of square will be equal to ciumference of the circle. It is very simple. Now that I told u the key point u could answer the rest.

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Michael Chan leaves a dock in his motorboat and travels at an average speed of 9 mph toward the Isle of Shoals, a small island o
horsena [70]

Since the motor boat left the dock 2 hours before the tour boat, their meeting point will be 27 miles from the dock from which both boats departed after 3 hours.

<h3>What is the distance?</h3>

Distance is the movement of an object regardless of direction. The distance can be defined as the amount of length an object has covered, regardless of its starting or ending position

We know that r × t = d

r = rate of speed

t = time

d = distance

For the motor boat

9 × t = d = rate × time

For the tour boat

27 × (t - 2) = d = rate × time

When they both cover the same distance in the same amount of time, they will eventually cross paths.

They both cover the same d-mile distance, so:

9 ×t = 27 × (t - 2)

Simplify to get:

9 × t = 27 × t - 54

18 t = 54

t = 3

The motor boat will have traveled at 9 mph for 3 hours to make a distance of 9 × 3 = 27 miles.

The tour boat will have traveled at 27 mph for 1 hour to make a distance of 1 × 27 = 27 miles.

Since the motor boat left the dock 2 hours before the tour boat, their meeting point will be 27 miles from the dock from which both boats departed after 3 hours.

To know more about distance visit: brainly.com/question/18850325

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8 0
2 years ago
So if 1+1=2then whats 2+2?
Delvig [45]

Answer:

4....

Step-by-step explanation:

Okay! Free points, uh... 2... and 2... put together... is... four...

4 0
3 years ago
Read 2 more answers
a source of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b an
marissa [1.9K]
Let  AM be the distance between point A and the right wall and AN be the distance between A and the left wall.
Δ AMB is an isosceles right triangle and  Δ ANC is half of an equilateral triangle.
Length of AM = 30 m. Length of AN = 1/2 · 80 = 40 m.
The distance between the walls is:
30 m + 40 m = 70 m.
4 0
3 years ago
John buys a computer with a 20% discount. If he paid $760 for the computer, how much was the discount?
Mumz [18]
If there was 20% taken off you add 20% back on and that is how you will get your answer. So take 760 plus the 20% which gives you 912 dollars
8 0
3 years ago
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Simplify 3/4 - 1 1/4
lbvjy [14]
I think the answer is -7/4.
4 0
3 years ago
Read 2 more answers
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