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Talja [164]
4 years ago
12

How do you write -5.16 as a fraction

Mathematics
2 answers:
8_murik_8 [283]4 years ago
5 0

Answer:

-5.16 = -129 /25  OR -5 and  4 /25

Step-by-step explanation:

Step 1: Write down the decimal divided by 1, like this: decimal 1. Step 2: Multiply both top and bottom by 10 for every number after the decimal point. (For example, if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.) Step 3: Simplify (or reduce) the fraction.

dmitriy555 [2]4 years ago
3 0

Answer:

You could write -5.16 as -5 4/25

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7x+1/2(x+1/4)=3(6x-9)-8
ycow [4]

Answer:

x = 381/24 = 3 29/84

Step-by-step explanation:

7x + 1/2(x + 1/4) = 3(6x - 9) - 8

<em>Use the distributive property to multiply 1/2 by x + 1/4.</em>

7x + 1/2x + 1/8 = 3(6x - 9) - 8

<em>Combine 7x (14/2x) and 1/2x to get 15/2</em>.

15/2x + 1/8 = 3(6x - 9) - 8

<em>Use the distributive property to multiply 3 by 6x - 9.</em>

15/2x + 1/8 = 18x - 27 - 8

<em>Subtract 8 from -27 to get -35.</em>

15/2x + 1/8 = 18x - 35

<em>Subtract 18x from both sides.</em>

-21/2x + 1/8 = -35

<em>Subtract 1/8 from both sides.</em>

-21/2x = -35 - 1/8

<em>-35 is the same as -280/8</em>.

-21/2x = (-280 - 1)/8

<em>Subtract 1 from -280 to get -281.</em>

-21/2x = -281/8

<em>Multiply both sides by -2/21 (reciprocal of -21/2).</em>

x = (-281 * -2)/(8 * 21)<em> </em>

<em>You can cross cancel -2 and 8</em> <em>by extracting 2 (they become -1 and 4 respectively).</em>

x = (-281 * -1)/(4 * 21)

<em>Multiply -281 by -1 to get 281.</em>

x = 281/(4 * 21)

<em>Multiply 4 by 21 to get 84.</em>

x = 281/84

<em>Can this fraction be simplified into a mixed number? Yes it can. It becomes 3 29/84. (252 (3 * 84) + 29 = 281)</em>

x = 3 29/84

Work check: x is substituted for 281/84 (convenience)

7 * 281/84 + 1/2(281/84 + 1/4) = 3((6 * 281)/84 - 9) - 8

1967/84 + 1/2(281/84 + 1/4) = 3((6 * 281)/84 - 9) - 8

1967/84 + 1/2(302/84) = 3((6 * 281)/84 - 9) - 8

(1967 + 151)/84 = 3((6 * 281)/84 - 9) - 8

2118/84 = 3(1686/84 - 9) - 8

2118/84 = 3((1686 - 756)/84) - 8

2118/84 = 3(930/84) - 8

2118/84 = 2790/84 - 672/84

2118/84 = (2790 - 672)/84

2118/84 = 2118/84

So x = 3 29/84 is correct.

5 0
3 years ago
(02.07 MC)
hjlf
The answer is 1.64 feet. 1.64 x 12 = 19.68 inches

19.68 x 2.54 cm= 49.9872 cm
7 0
3 years ago
40 points volume math pls answer clue ty it’s kinda long
EastWind [94]

Answer: (Going down from first column to second column)

1. 10,000

2. 7

3. 35

4. 16

5. 4

6. 828.75

7. 24

8. 14

9. 27

10. 378

11. 6,600

12. 90

Step-by-step explanation:

1. 25x10x40

2. 15x10.5x20 then divide the answer by 450

3. Same method as above

4. Multiple the Length and the Width, then divide that from the volume

5. Take 64 and cubic root it

6. Multiple them all together

7. Same thing as 6

8. Same as number 4

9. Take 3 and cubic it. Aka multiple it three times

10. Idk this one sorry.

11. Multiple it all together

12. Multiple 2,4,5 for 40 and take that number and divide it from the volume

Really hope this help you out! Took me a little bit to solve this.

6 0
4 years ago
Sandra Wants to buy a new MP3 Player that is on sale for $95. She has saved $73. How much more money does she need?
Vikki [24]
95-73= 22
she needs $22 
3 0
3 years ago
Can someone please help me with this question?
dolphi86 [110]
Selection D) is appropriate.

The triangles are congruent by SSA, given the angle is a right angle, not ASA or AA. YX is not congruent to UW, so C) is incorrect.
5 0
4 years ago
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