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2 years ago

-2x – 9y = 11 x – 3y = 17

1 answer:

6 0

-2x-9y=11x-3y
-2x+2x-9y=11x+2x-3y
-9y=13x-3y
-9y+3y=13x-3y+3y
-6y=13x
y=-13x/6

Plug -13x/6 in for y and solve for x using one of the equations
11x-3(-13x/6)=17
11x+13x/2=17
35x/2=17
35x=34
x=34/35

Plug 34/35 in for x to solve for y now
y=(-13(34/35))/6
y=-221/105

x=34/35 y=-221/105
Now when you plug in those numbers for x and y you get 17 for both equations.

Hope I didn't mess up for your sake.

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2 years ago

Pada hari kantin sebanyak 800 naskah kupon telah dijual,harga senaskah kupon masing masing rm 30 dan rm 50 .jumlah wang diperole

solniwko [45]

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Step-by-step explanation:

On the day of the canteen, 800 coupons were sold, the price of each coupon was RM 30 and RM 50 respectively. The amount of money earned from the sale of coupons was RM30000. How many copies of RM30 and RM50 coupons were sold?

Let:

RM 30 = x

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2 years ago

What is the value of x?

frez [133]

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2 years ago

��2222 is the diameter of a circle. The coordinates are �(−2, −3) and �(−12, −5). At what coordinate is the center of the circle

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Answer:

(-7,-4)

Step-by-step explanation:

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HOPE IT HELPED.

7 0

2 years ago

Read 2 more answers

2,8 -4,-4 what is the slope

emmasim [6.3K]

Answer:

For (2, 8) the slope is 2

For (-4, -4) the slope is -4

Step-by-step explanation:

The slope is the x axis which goes first

and the y intercept would be the y axis which goes second

Slope goes before the y intercept

for example: (8, 4) the slope is 8 the y intercept is 4

7 0

2 years ago