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Roman55 [17]
3 years ago
13

The denominator of a rational numbers is twice it’s numerator if the numerator is decreased by 3 and the denominator increased b

y 7 the number obtained is 2/5 find the rational number
Mathematics
1 answer:
ASHA 777 [7]3 years ago
8 0

Answer:

\frac{29}{58}

Step-by-step explanation:

let x be the numerator of the rational number then 2x is the denominator

original fraction = \frac{x}{2x}

subtracting 3 from numerator and adding 7 to denominator , gives

\frac{x-3}{2x+7} = \frac{2}{5} ( cross- multiply )

5(x - 3) = 2(2x + 7) ← distribute parenthesis on both sides )

5x - 15 = 4x + 14 ( subtract 4x from both sides )

x - 15 = 14 ( add 15 to both sides )

x = 29

rational number = \frac{29}{58}

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Angle 3 is equal to Angle 2 because when you have a rhombus, the diagonals will always bisect the angles.

Step-by-step explanation:

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3 years ago
A soldier started patrolling around his camp at 22 30 . His patrol lasted 3 hours and 20 minutes .What time did his patrol end
baherus [9]

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Step-by-step explanation:

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4 0
3 years ago
Plz hellppppp (6h + 8) - (3h + 2) = 15
Sonja [21]

Answer:

h = 3

Step-by-step explanation:

Step 1: Write out equation

(6h + 8) - (3h + 2) = 15

Step 2: Distribute negative

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Step 3: Combine like terms

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Step 6: Check Step

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5 0
3 years ago
Read 2 more answers
I need help with math!!! time is running out!!! will mark brainliest!!!
Valentin [98]
1.

Answers A. and C.

2.

Answer B.

3.

Answer B.
6 0
3 years ago
In order to solve the following system of equations by elimination, which process creates opposite coefficients to eliminate the
leonid [27]

Answer:

C. Multiply the first equation by -4

Step-by-step explanation:

Hi there!

In order to eliminate the y values, we would have to find a number in which the sum of the top y value and the bottom y value would equal 0. In this case, the bottom y value is equal to +4 (the +4y), so we would have to find the number that would add to make that 0, which is -4. Since the y value for the top equation is 1, all we have to do is multiply the equation by -4 so that our y value is equal to -4y and the y can be eliminated.

I hope this helps!!

7 0
3 years ago
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