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JulijaS [17]
3 years ago
8

A middle school has an oval track with the dimensions shown. What is the distance around the track? use 3.14 for π. show your wo

rk.

Mathematics
2 answers:
Alex3 years ago
7 0
I think the asnwear is 10859.94
I’m sorry if I’m wrong :{
Snezhnost [94]3 years ago
3 0

Answer:

10859.94

Step-by-step explanation:

To solve this, you need to know the formula for solving the area of a circle: πr²

The first thing you should do is find the area of the square: 78 x 78 = 6084

Then, we find the area of the circle. To do this, we must figure out the radius. Luckily, the problem states that the combined diameter of both half circles is 78, which means the radius is 39. Then, we can apply the formula: π39².

39² = 1521

1521 x 3.14 = 4775.94

This is the combined area of both half circles.

Finally, we have to add: 4775.94 + 6084 = 10859.94

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A drilling machine can drill 12 holes in 6 minutes.If the machine drill holes at a constant speed, it can drill holes in 25 minu
Zielflug [23.3K]

Answer:

Did you mean to ask how many holes can the drill drill in 25 minutes, then the answer is 50

7 0
3 years ago
You created a new playlist in 100 of your friends listened to it and shared if they likedThe new playlist or not nadhi said the
Nostrana [21]

Given

You created a new playlist in 100 of your friends listened to it and shared if they liked

The new playlist said the ratio Of people who liked the playlist to those who did not like the playlist is 75:25.

Dylan said that for every three people who like to playlist one person did not

Find out  Do Nadhii and Dylan Agree or not.

To proof

As given in the question

created a new playlist in 100 of your friends listened to it and shared if they liked

new playlist said the ratio Of people who liked the playlist to those who did not like the playlist is 75:25.

Simply the ratio of people who liked the playlist to those who did not like the playlist

= \frac{75}{25}

= \frac{3}{1}

Thus  

\frac{People \ like \ the \ playlist}{People \ didnot \ like \ the\ playlist}=\frac{3}{1}

also

Dylan said that for every three people who like to playlist one person did not

In the form of ratio written as

\frac{People \ like \ the \ playlist}{People \ didnot \ like \ the\ playlist}=\frac{3}{1}

the value of both new playlist  and Dylan said about the ratio of people who liked the playlist to those who did not like the playlist is 3:1.

The value both of their ratio are equivalent .

Thus Nadhii and Dylan Agree

Hence proved





7 0
3 years ago
The table shows weights for different US coins. Allen has one of each coin in his hand.
kozerog [31]
Round each coin weight to the nearest gram first, penny 3g, nickel 5g, dime 2g, quarter 6g, half dollar 11g. Now add those numbers together as he has one of each coin 3+5+2+6+11=27 grams



6 0
3 years ago
Find the surface area of a rectangular prism that has the following dimensions.
Shalnov [3]
2(wl+hl+hw)=2·(14·2+11·2+11·14)=408
6 0
3 years ago
Read 2 more answers
If there are 135 revolutions in 180 seconds how many revolutions in 40 seconds?
BartSMP [9]

Answer:

53.3 rotations

Step-by-step explanation:

135/180=x/40

solve by cross multiply

7 0
2 years ago
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