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schepotkina [342]
3 years ago
15

A professional volleyball player can jump an average of 2.5 times higher than the average person. If an average person can jump

inches high, how high can the professional volleyball player jump?
a. 2x

b. 2.5x

c. 2.5(2x)

d. 10x
Mathematics
1 answer:
Eva8 [605]3 years ago
8 0
The answer is B, 2.5x
2.5 is the average of how many times higher they can jump and x is the average person
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Question 9
timurjin [86]

Answer:

<u>The</u><u> </u><u>requ</u><u>ired</u><u> </u><u>num</u><u>ber</u><u> is</u><u> </u><u>7</u><u>0</u><u>.</u>

Step-by-step explanation:

let the no. be 10y + x where x is unit digit and y is ten's digit.

given , sum of the digit is 7

x + y = 7 ...(1)

also , reversing the no. we get 10x + y ,where x is ten's digit and y is unit digit.

given reversed digit decreases the number by 63 .

so, 10y + x - ( 10x + y ) = 63

9y -9x = 63

( dividing both side by 9 )

y - x = 7 ....(2)

adding 1 and 2 [ refer attachment ]

so the required original number is

10y + x = 10×7+0 = 70

8 0
2 years ago
List price is another term for
mixas84 [53]
I think it's cost price I heard it before somewhere Hope I've been any help to you
4 0
3 years ago
Eric's notebook has 30 pages he wants to write a number on each page starting with one how many digits will he right when he num
xeze [42]
It will be 29 bc if u minus 30-1 ull get that
4 0
3 years ago
Read 2 more answers
What time 30equals 200
Dovator [93]
The answer is 20/3 first you set a variable x and 30x=200 divid both side by 30 and get the final answer
8 0
3 years ago
Read 2 more answers
Solve the equation below and find the variation constant, k .Find y when x = 7 and z=5, if y varies jointly as x and 2, and y= 1
Vlada [557]
<h3>Answers:</h3>

Variation Constant: k = 7/6

y = 245/6 when x = 7 and z = 5

====================================

Explanation:

"y varies jointly as x and z" means that y = kxz

We have (x,y,z) = (4,14,3) as one triple, so,

y = kxz

14 = k*4*3

14 = 12k

12k = 14

k = 14/12

k = 7/6 is the variation constant

The equation goes from y = kxz to y = (7/6)xz

----------------

Plug in x = 7 and z = 5 to find y

y = (7/6)xz

y = (7/6)*7*5

y = (7/6)*(7/1)*(5/1)

y = (7*7*5)/(6*1*1)

y = 245/6

4 0
3 years ago
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