3 years ago

Solve the equation 3 - 4-587 3.87 b. 0.55, -0.55 a. C. 1.53,-1.53 d. 4.98

Mathematics

1 answer:

dexar [7]3 years ago

8 0

Answer: X = 0

Let me know if it’s correct

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Ow many decimals numbers are there whose value equals the average of their digits?

kiruha [24]

Answer:

Step-by-step explanation:

there are infinite numbers between 2 and 3 having average=2.5

2.49,2.51

2.48,2.52

2.47,2.53

2.46,2.54

.................

2.491,2.509

2.492,2.508

2.493,2.507

......................

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2 years ago

A midwestern music competition awarded 38 ribbons. The number of blue ribbons awarded was 1 less than the number of white ribbon

Artist 52 [7]

Starting from what I know (the difference between ribbons), I decided to go from the bottom and work my way up. I then noticed a pattern (each sum was three more of the previous one), and decided to keep my pattern of the three numbers but not have to do any major mental work and instead add three to the previous sum until I got to 38.