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Ronch [10]
2 years ago
11

The sum of two numbers is 8. The difference of the same two numbers is 4. What are the two numbers?

Mathematics
2 answers:
vlada-n [284]2 years ago
8 0

Answer:

2 and 6

Step-by-step explanation:

Kobotan [32]2 years ago
5 0

Answer:

2 and 6

Step-by-step explanation:

2+6=8. 6-2=4.

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A jar contains 4 green marbles and 3 blue marbles of the same size and shape. rachel will randomly pull 2 marbles from the bag a
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You bike 1 mile the first day of your​ training, 1.3 miles the second​ day, 1.9 miles the third​ day, and 3.1 miles the fourth d
JulsSmile [24]

Answer:

19.9 miles

Step-by-step explanation:

In this problem we have:

d_1=1 mi is the distance travelled during the 1st day

d_2=1.3 mi is the distance travelled during the 2nd day

d_3=1.9 mi is the distance travelled during the 3rd day

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We notice that the difference between the distance travelled on the (n+1)-th day and the distance travelled on the n-th day doubles every day. In fact:

d_2-d_1=0.3\\d_3-d_2=2\cdot 0.3 = 0.6\\d_4-d_3=2\cdot 0.6 = 1.2

Which can be rewritten using the general formula:

d_{n+1}-d_n=2(d_n-d_{n-1})

This means that

d_{n+1}=d_n+2(d_n-d_{n-1})

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7 0
3 years ago
Explain how you can solve 8x8 if you know how to multiply with 4 but not how to multiply with 8
meriva

Answer:

8×8=64

Step-by-step explanation:


6 0
3 years ago
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