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SashulF [63]
3 years ago
15

Complete the steps to solve for Xplease say sloving steps​

Mathematics
1 answer:
ollegr [7]3 years ago
4 0

Answer:

see below

Step-by-step explanation:

2/5x - 1/4x = 3

Get a common denominator of 20

2/5x *4/4  - 1/4x *5/5 =3

8/20 x   - 5/20x  =3

3/20x = 3

Multiply by 20/3 to isolate x

20/3 * 3/20 x = 20/3 * 3

x = 20

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KHD M D CM<br> E20<br> 562 mm = [?] cm
Allisa [31]
56.2 cm. divide by 100
6 0
3 years ago
Please help I'm confused
TiliK225 [7]

Answer:

(24-4.00)-4.50/20

Step-by-step explanation: 24 minus 4 would be 20 and you could buy 4 phone cases because 20 divided by 4.50 is 4.4 so 4 times 4 is 16 plus the 2.00 dollars extra from the .50 in the 4.50 so it would be you can buy 4 phone cases.

3 0
3 years ago
Solve and show your work please!x+7=2(3x-4)
Brrunno [24]

x + 7 = 2(3x - 4)         Remove the brackets

x + 7 = 2*3x - 4*2

x + 7 = 6x -  8            Subtract 7 from both sides.

x + 7 - 7 = 6x - 8 - 7  

x = 6x - 15                 Subtract 6x from both sides

x - 6x = - 15

-5x = - 15                   Divide by -5

-5x/-5 = -15/-5

x = 3

6 0
4 years ago
Three coins are flipped.
Debora [2.8K]

Answer:

3/8

Step-by-step explanation:

There are 6 posibilities, if u graph it out, it makes 3/8

3 0
3 years ago
Read 2 more answers
The amount of revenue in dollars, y, that Jason receives from selling x posters is given by the equation y = 1/2x +280. How many
Troyanec [42]
Referring to the complete question : brainly.com/question/9714396

Revenue from selling the posters:
y = 4x

Cost of producing the posters:
y = 1/2x + 280

Equate and solve for x
4x =  \dfrac{1}{2}x + 280

4x- \dfrac{1}{2}x = 280

3\dfrac{1}{2}x = 280

\dfrac{7x}{2} = 280

7x =560

x = 560 \div 7

x = 80


Answer: Jason must sell 80 of the posters so that the cost and revenue are equal.

6 0
4 years ago
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