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Shalnov [3]
3 years ago
15

What's 57.8 divided by 81 using compatible numbers?

Mathematics
1 answer:
Arisa [49]3 years ago
7 0
you can estimate 57.8 and 81 then to check you can do 57.8 divided by 81
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Pls help its not that hard, im in 7th grade
Aneli [31]

Answer:

$8 an hour

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find four fractions between 1/10 and 1/8
Alex17521 [72]

9514 1404 393

Answer:

  5/48, 5/46, 5/44, 5/42

Step-by-step explanation:

We can choose unit fractions with denominators between 8 and 10, separated by (10-8)/5 = 0.4 units:

  1/8.4 = 5/42

  1/8.8 = 5/44

  1/9.2 = 5/46

  1/9.6 = 5/48

__

<em>Check</em>

  • 1/8 = 0.125
  • 5/42 ≈ 0.119
  • 5/44 ≈ 0.114
  • 5/46 ≈ 0.109
  • 5/48 ≈ 0.104
  • 1/10 = 0.100

_____

<em>Additional comment</em>

There are an infinite number of such fractions. We are given unit fractions with different denominators, so it works reasonably well to choose denominators between those given. Then the trick is to convert the fraction to a ratio of integers. In this case, multiplying by (5/5) does the trick.

__

Another approach is to write the fractions with a common denominator, then choose numerators between the ones given. For example, 1/10 = 4/40, and 1/8 = 5/40, so you could write some fractions with numerators between 4 and 5. Possibilities are 4.1/40 = 41/400, 4.3/40 = 43/400, 4.7/40 = 47/400, 4.9/40 = 49/400.

6 0
2 years ago
Find the x-intercept of the line 9× + 3y = -18​
ella [17]

Answer:

(-2,0)

Step-by-step explanation:

To find the x intercept, set y =0 and solve for x

9x+3y = -18

9x +0 = -18

9x/9 = -18/9

x = -2

(-2,0)

4 0
3 years ago
What is the answer to 54,000×10
mr Goodwill [35]

the answer to 54,000 x 10 is 540,000
8 0
2 years ago
Rhianna and Sauron a wrote 35 songs . They mad CDs with 7 songs on each CD. How many CDs did they have left after they sold 3 to
myrzilka [38]

35 songs/7 songs= 5 CDs

5-3=2 CDs left after they sold 3

8 0
2 years ago
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