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amid [387]
3 years ago
7

To eliminate the y-terms and solve for x in the fewest steps, by which constants should the equations be multiplied by before

Mathematics
1 answer:
Semenov [28]3 years ago
7 0

Answer:

To eliminate y- terms

Multiply equ(1) by 3 and equ(2) by -4

To eliminate y- terms

Multiply (1) by 3 and (2) by -5

Step-by-step explanation:

5x - 4y = 28 (1)

3x - 3y = 30 (2)

To eliminate y- terms

Multiply equ(1) by 3 and equ(2) by -4

15x-12y=84

-12x+12y= -120

Add equ (3) and (4)

3x=84-120

3x=-36

x=-36/3

= -12

x=-12

To eliminate x- terms

5x-4y=28

3x-3y=30

Multiply (1) by 3 and (2) by -5

15x-12y=84

-15x+15y=-150

Add the new equation

3y= -66

y= -22

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6 0
3 years ago
Maddie has a gross monthly income of $2200. She has 35% of her paycheck withheld as deductions.
Softa [21]

Answer:

The percent of net income Maddie gives as rent = 29.97%

Step-by-step explanation:

Given:

Gross monthly income for Maddie = $2200

Percentage of her paycheck withheld = 35%

Amount paid for rent = $400

To find the percent of her net monthly pay that goes to rent.

Solution:

Amount of paycheck withheld as deductions :

⇒ 35% of the gross income

⇒ 35% of $2200

⇒ 0.35\times $2200

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Percentage of net income given as rent is given as :

⇒ \frac{Amount\ given\ as\ rent}{Net\ income}\times 100

⇒ \frac{400}{1430}\times 100

⇒ 27.97%   (Answer)

3 0
3 years ago
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