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Kisachek [45]
3 years ago
11

when the sum of an unknown number z and twenty two is divided by the same unknown number,the quotient is twelve what is the unkn

own number
Mathematics
1 answer:
Anarel [89]3 years ago
6 0

The unknown number . . . . .  (z)

The sum of the unknown number and 22 . . . . .  (z + 22)

The sum of the unknown number and 22
divided by the same unknown number . . . . . . .  (z + 22) / z

You said that quotient is 12.              (z + 22) / z  =  12

Multiply each side by 'z' :                  (z + 22)       =  12 z

Subtract 'z' from each side:                      22        =  11 z

Divide each side by  11 :                           2         =      z .
   
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two circles are externally tangent to each other. One circle has a diameter of 62 yards and the distance between the centers of
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108 yards

Step-by-step explanation:

Let circle A be the circle with the 62 yard diameter

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8 0
3 years ago
1)Sheyna drive to the lake and back. It took two hours less time to get there than it did to get back. The average speed on the
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Answer:

8 hours

Step-by-step explanation:

Given:

Sheyna drives to the lake with average speed of 60 mph and

v_1 = 60\ mph

Sheyna drives back from the lake with average speed of 36 mph

v_2 = 36\ mph

It took 2 hours less time to get there than it did to get back.

Let t_1 be the time taken to drive to lake.

Let t_2 be the time taken to drive back from lake.

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