Pl help it’s for homwork

Mathematics

1 answer:

yaroslaw [1]3 years ago

7 0

X=5
y=6

here’s how i got it:
-6x+6y=6
-6x+3y=-12

multiply the second equation by -1
you will get this:

-6x+6y=6
6x-3y=12

add them up and you will get
y=6
then substitute y in one of the equations and you will get x=5

You might be interested in

A giant tortoise can travel 0.19 miles in 1 hour. At this rate, how long would it take the tortoise to travel 1 mile?

hjlf

Answer:

5.26 hours or 315.6 minutes

Step-by-step explanation:

If he travels 0.19 miles in 1 hour

Then 1 mile is traveled (1x1)/0.19

5.26 approx. hours or 5.26 x 60 mins = 315.6.

8 0

3 years ago

suppose your friends parents invest 10,000 in an account paying 6% compounded annually.what will the balance be after 5 years

Alex17521 [72]

<h3>✽ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ Use this formula:

final = original x multiplier^n

n would be the number of years

First to calculate the multiplier:

6/100 = 0.06

1 + 0.06 = 1.06

Substitute the values in:

final = 10000 x 1.06^5

Solve:

final = 13382.25578

Your answer is $13382.25

➶ Hope This Helps You

➶ Good Luck

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

5 0

3 years ago

A gardener has 640 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a river and so it doe

kari74 [83]

9514 1404 393

Answer:

160 ft (out from the river)
320 ft (parallel to the river)

Step-by-step explanation:

Let x represent the length of fence parallel to the river. Then the dimension of perpendicular to the river will be half the remaining fence: (640-x)/2. The total area will be ...

A = x(640-x)/2

This is the equation of a parabola that opens downward. It has zeros at x=0 and x=640, so its axis of symmetry is x = (0+640)/2 = 320. That is, the peak of the area curve is found when x=320.

The dimensions of the garden with the largest area are 160 ft wide by 320 ft long, where the long side is the river side.