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2 years ago

The mean of 4 numbers is 19. What would the new mean be if the number 30 is added to the data set?

Mathematics

1 answer:

german2 years ago

8 0

Answer:

B 21.2

Step-by-step explanation:

Im not sure at all tho. But I hope this helps :/

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Suppose you drop a ball from 120 feet. The ball will bounce to 25 of its previous height. What is the total distance the ball tr

tamaranim1 [39]

Answer:

277.1 feets

Step-by-step explanation:

Drop height = 120 feets

Ball bounces 2/5 of previous height

Height after 1st bounce :

120 * 2/5 = 48 feets

Return distance = 48 feets

Height after second bounce :

48 * (2/5) = 19.2 feets

Return distance = 19.2 feets

Height after 3rd bounce :

19.2 * (2/5) = 7.68 feets

Return distance = 7.68 feets

Height after 4th bounce :

7.68 * (2/5) = 3.072 feets

Return distance = 3.072 feets

Height after 5th bounce :

3.072 * (2/5) = 1.2288 feets

(120 + (2*48) + (2*19.2) + (2*7.68) + (2*3.072) + 1.2288) = 277.1328

= 277.1 feets

6 0

2 years ago

Farmers Bob ,Joe and Larry sold apples at the farmers market .Bob sold 86 apples .Joe sold 12 times as many as Bob .Larry sold h

kotykmax [81]

Answer:

Altogether they sell 1634 apples.

Step-by-step explanation:

GIven:

Bob, Joe and Larry sold apples at the farmers market.

Bob sold 86 apples.

Joe sold 12 times as many as Bob.

Larry sold half as many apples as Joe.

Now, to find the total apples Bob, Joe and Larry they all sell together.

Number of apples Bob sold = 86.

Number of apples Joe sold = 12 times of 86.

$=12\times 86\\\\=1032.$

Number of apples Larry sold = $\frac{1}{2}\ of\ 1032$

$=\frac{1}{2} \times 1032$

$=516.$

Now, to get the apples they sell altogether we add the number of apples sold by Bob, by Joe and by Larry:

$86+1032+516$

$=1634.$

Therefore, altogether they sell 1634 apples.

7 0

3 years ago

Are these triangles similar? (worth 25 points)

zloy xaker [14]

Find angleK:

Angle k = 180-45-85 = 50

Both triangles have an angle equal to 85 and 45, which makes the 3rd angle in both triangles equal to 50

Because all three angles are the same the triangles are similar.

5 0

3 years ago

Find the value of x in the following triangle

seropon [69]

61 + 86 = 147

180 - 147 = 33

x = 33

the interior sum of angles is equal to 180 , in order to find x you would use the already established values of two corners and find the missing value

5 0

3 years ago

There are 5 5/4 of milk left in a carton. Write 5 5/4 an improper fraction. Explain what the improper fraction represents in thi

alexdok [17]

Answer:

25/4 This improper fraction represents how much milk is left in the carton.

Step-by-step explanation:

5×4=20

20+5=25

25/4

5 0

3 years ago