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Alexandra [31]
3 years ago
9

Please help worth 30 points!! (scientific notation)

Mathematics
1 answer:
irga5000 [103]3 years ago
8 0

Answer:

There are 3.2 times 10^{23} ping pong balls would be required to fit inside the Earth.



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A cheetah can run 70 miles per hour.What is this speed un feet per hour
Debora [2.8K]
The correct answer to this question is that the cheetah can run 369,000 feet per hour. We can work this out in the following way:
One mile equals 1760 yards
In feet that is 3 x 1760 or 5,280
So Feet per hour will be 5280 x 70 or
369,600 feet per hour.
8 0
3 years ago
Read 2 more answers
Solve the following system : -x + 5y = 8 and 3x + 7y = -2
poizon [28]

-x + 5y = 8

multiply this equation by 3

-3x + 15y = 24

now add it to the other equation  ( elimination)

-3x + 15y = 24

3x + 7y = -2

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

0x  + 22 y = 22

divide each side by 22

y =1


substitute into -x + 5y =8  to find x

-x + 5(1) = 8

-x + 5 = 8

-x =3

divide by -1

x =-3

Answer (-3,1)

Choice A


4 0
4 years ago
Hey guys I need help, what is 12-(3)+7?
Basile [38]

Answer:

16

Step-by-step explanation:

12 - 3 = 9

9 + 7 = 16

3 0
3 years ago
What is -25pi over 12 in degrees
Vesnalui [34]

Answer: <em>0=75degrees</em>

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8 0
3 years ago
A music store buys a trumpet for $80. They want to make a 35% profit. How much are they going to increase the price?
elena-s [515]

Answer:

They should increase their price by $28.

Step-by-step explanation:

First find out what 35% of 80 is. Do so by multiplying 80 by 35% in its decimal form - .35.

80*.35=28.

This means that they have to increase their price by at least 28 dollars to make a profit.

The new price of the instrument should be $108 - $80 increased by 35%.

Hope this helps :)

4 0
3 years ago
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