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gavmur [86]
3 years ago
9

What's the circumference of a circle with a diameter of 9 inches? Use 3.14 for n.

Mathematics
1 answer:
Rainbow [258]3 years ago
8 0

Answer:

28.26 in

Step-by-step explanation:

Radius = (1/2) diameter

Radius = (1/2)(9)

Radius = 4.5 in

Circumference = 2πr

Circumference = 2(3.14)(4.5)

Circumference = 28.26 in

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Ling tried to evaluate the expression 15÷5+7×5 ​
rewona [7]

Answer:

38

Step-by-step explanation:

always remember bedmas or pedmas. 15÷5 is 3 plus 7x5 which is 35 so add 3 and 35 to get 38.

6 0
3 years ago
What is the solution of the system of equations 2x-5y=11 and -2x+3y=-9
Rainbow [258]
Equation 1:
x = (5y+11)/2
Substitute equation 1 to 2:
-2((5y+11)/2)+ 3y=-9
-2/2 = -1 thus -1(5y+11)

Continue...
-(5y+11)+3y=-9
-5y-11+3y =-9
(-5+3)y= 11-9
-2y = 2
y=-1

Substitute y into equation 1:
x=(5*-1+11)/2
x = 6/2=3

So y=-1 and x =3
6 0
2 years ago
myles and stephen participated in the long jump at the track meet . Myles jumped 4 7/10 meters. Stephens jump was 3 4/5 meters w
Tasya [4]
You would have to subtract both of them and you will get 9/10 stephens jump was further

4 0
2 years ago
The floor of the cage measures 11 yardyard wide by 66 feetfeet long. One bag of shavings covers 55 square feetfeet. How many bag
bazaltina [42]

Answer:

3 3/5 bags

Step-by-step explanation:

We have to find the surface area of the floor of the cage first.

The cage measures 1 yard wide by 6 feet long.

1 yard = 3 feet

The floor of the cage is rectangular, so, the surface area of the floor of the cage is therefore:

3 * 6 = 18 square feet

One bag of shavings covers 5 square feet.

To find the number of bags we need to cover the floor, we divide the surface area of the floor by the number of bags per square feet.

The number of bags needed for the floor of the cage is therefore :

18 / 5 = 3 3/5 bags

5 0
3 years ago
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Dennis_Churaev [7]

Answer:

about 3.3 times or 3 1/3 times

Step-by-step explanation:

divide 2 by 2/3

6 0
2 years ago
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