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kaheart [24]
3 years ago
10

4x 5. If 7:5 = (x + 2y): (x - y), find the value of 5y

Mathematics
1 answer:
Otrada [13]3 years ago
8 0

Answer:

5/2 OR 2.5

Step-by-step explanation:

( x + 2y ) = 7 , ( x - 2y ) = 5

x = 7 - 2y , x = 5 + 2y

substitute the two eqns together:

7 - 2y = 5 + 2y

7 - 5 = 2y + 2y

2 = 4y

y = 1/2

when y = 1/2 ,

5y = 5(1/2)

= 5/2 OR 2.5

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Solve for x. −35x+15>7/20 Drag and drop a number or symbol into each box to correctly complete the solution.
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Answer:

x < 293 / 700

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−35x + 15 > 7/20

Multiplying all through by 20

-700x + 300 > 7

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Divide all through by 700

- x > - 293 / 700

Multiply all through by -

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The circumference of a circular field is 163.28 yards. What is the radius of the field? Use 3.14 for π and do not round your ans
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What is the difference between (Picture 1) and (picture 2)? A. 0 B. 2 C. 5 D. 6
Vesnalui [34]

Answer:

The difference between the picture is 0  , option A .

Step-by-step explanation:

Given two figures as :

In figure A

The expression is 1 + 3 n  , where n lies from 0 to 4

So , let f (n) = 1 + 3 n

Or,f ( n ) = 1 + 3 ×0 = 1 + 0 = 1

    f ( 1 ) = 1 + 3 ×1 = 1+ 3 = 4

   f ( 2 ) = 1 + 3 ×2 = 1+ 6 = 7

   f ( 3 ) = 1 + 3 ×3 = 1+ 9 = 10

   f ( 4 ) = 1 + 3 ×4 = 1+ 12 = 13

so, summation of ( 1 + 3 n ) from n = 0 to 4  = 1 + 4 + 7 + 10 + 13 = 35

In figure B

The expression is 3 i - 5  , where i lies from 2 to 6

So , let g (i) = 3 i - 5

Or,g ( 2 ) = 3 ×2 - 5 = 6 - 5 = 1

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Hence The difference between the picture is 0  , option A .  Answer

4 0
4 years ago
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