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Mars2501 [29]
3 years ago
7

How do you convert 0.4 repeating into a fraction?

Mathematics
1 answer:
Ksju [112]3 years ago
3 0


0.4=4

       -

      10 your welcome

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One half of Heather's age two years ago from now plus one-third of her age three years ago is twenty years. How old is she now?
Gnesinka [82]
X = Heather's age NOW
x - 2 = her age 2 years ago
x - 3 = her age 3 years ago

\frac{1}{2}(x-2)+\frac{1}{3}(x-3)=20

The Least Common Multiple of 2 and 3 is 6.  Multiply both sides by 6.

6\cdot\frac{1}{2}(x-2)+6\cdot\frac{1}{3}=6\cdot20 \\3(x-2)+2(x-3)=120 \\ 3x-6+2x-6=120 \\ 5x-12=120 \\ 5x=132 \\ x=\frac{132}{5}=26.4
7 0
3 years ago
3/25 as a percentage
maria [59]

Answer:

12%

Step-by-step explanation:

3/25 = .12

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3 0
2 years ago
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Add in write in the simplest form 3 1/3 divided by 2 3/5
bixtya [17]

Answer:

1 11/39

Step-by-step explanation:

3 1/3 = 10/3

2 3/5 = 13/5

10/3 / 13/5

50/39 = 1 11/39

BRAINLIEST WOULD MEAN A TON ;)

5 0
3 years ago
4(2x-3)=0.2(x+5)÷5.72
rusak2 [61]

Answer:

x=1.528534

Explanation:

Simplify both sides of equation

4(2x-3)=0.2(x+5)/5.72

(4)(2x)+(4)(−3)=0.034965x+0.174825(Distribute)

8x+−12=0.034965x+0.174825

8x−12=0.034965x+0.174825

Step 2: Subtract 0.034965x from both sides.

8x−12−0.034965x=0.034965x+0.174825−0.034965x

7.965035x−12=0.174825

Step 3: Add 12 to both sides.

7.965035x−12+12=0.174825+12

7.965035x=12.174825

Step 4: Divide both sides by 7.965035.

7.965035x/7.965035=12.174825/7.965035

x=1.528534

4 0
3 years ago
I need number 22 answered
pochemuha

Answer:

y = -7.5 I believe

Step-by-step explanation:


6 0
3 years ago
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