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nika2105 [10]
2 years ago
12

Oh no my math its broken

Mathematics
1 answer:
Sidana [21]2 years ago
4 0

Answer:

  a) 1 1/2

  b) 3/8

  c) 2 11/12

  d) 1/2

Step-by-step explanation:

When one denominator is a multiple of the other, the least common denominator is the larger of the two. Expressing the fractions using the least common denominator can simplify the work a bit.

For adding and subtracting mixed numbers, I find it easiest to combine the integer parts and the fraction parts separately, then make an adjustment to the integer as may be required.

__

a) 5/6 +4/6 = 9/6 = 1 3/6 = 1 1/2

__

b) 7/8 -4/8 = 3/8

__

c) 1 2/3 +1 1/4 = (1 + 1) + (8/12 + 3/12) = 2 11/12

__

d) 2 1/3 - 1 5/6 = (2 -1) +(2/6 -5/6)

  = 1 - 3/6 = 1 - 1/2 = 1/2

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3 years ago
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The sum of two numbers is ten. the difference between them is 8 . find the two numbers
alexira [117]

x+y=10

x-y=8, x=y+8

y+8+y=10

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y=1

So, x=10-y=10-1=9.

Numbers Would be 9 and 1.


3 0
3 years ago
You play a game that involves rolling a die. You can roll as many times as you want, but if you roll a six your score is zero an
anyanavicka [17]

Answer:

6

Step-by-step explanation:

P(6) = ⅙

Expected no. of trials for first 6:

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5 0
3 years ago
Some money is shared between erin, faye and sachin in the ratio 5:2:7. Faye gets £90 less than sachin. How much money did Erin g
VARVARA [1.3K]

Answer:

Erin gets £90

Step-by-step explanation:

Ratio = 5 : 2 : 7

Money with Erin = 5x

Money with Faye = 2x

Money with Sachin = 7x

Faye gets £90 less than Sachin

7x -  2x = 90

      5x = 90

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Money with Erin = 5*18 = 90

7 0
3 years ago
Marcus earns 15% commission on his total sales at work.
IrinaVladis [17]

Answer:

Option C

Step-by-step explanation:

Given the following question:

Total cost is $725
15% Marcus makes in commission.

In order to find the answer, we have to find 15% of $725 and that number will be the total in commissions he earned that week.

\frac{15\times725}{100} =15\times725=10875\div100=108.75

Marcus makes "$108.75" or option C in commissions last week.

Hope this helps.

5 0
2 years ago
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