All categories

3 years ago

What is the solution of system of equations. Y=1/3x+2 y=4/3x-5

Mathematics

1 answer:

Sauron [17]3 years ago

7 0

When x = 7

Y=1/3x+2
Y=1/3(7) + 2
Y = 7/3 + 2
Y = 7/3 + 6/3
Y = 13/3

and
y=4/3x-5
y=4/3(7)-5
y=28/3 - 5
y = 28/3 - 15/3
y = 13/3

answer
(7, 13/3) is the solution

You might be interested in

Im confused on this one !

Alex787 [66]

I believe that it would be the first one. They are looking for the distance from the y-axis, so the x value doesnt matter. 6 is 6 units away from the y-axis, and -6 is also 6 units away from the y-axis. Hope I helped!

6 0

2 years ago

Two tapes, red and green, with lengths of 415 feet and 780 feet respectively are to be cut into pieces of equal length without r

ICE Princess25 [194]

Answer:

The greatest possible length of the pieces is 5 feet

Step-by-step explanation:

Red = 415 feet

Green = 780 feet

Find the greatest possible length of the pieces.

Find the Highest common factor

415 = 1, 5, 83, 415

780 = 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390 and 780

The Highest common factor of 415 and 780 is 5

The greatest possible length of the pieces is 5 feet

Red = 415/5

= 83 pieces

Green = 780/5

= 156 pieces

3 0

2 years ago

Which of the following terms correctly describe the object below?

Ratling [72]

The correct answers are A, D, E

5 0

2 years ago

An alloy of tin is 15% tin and weighs 20 pounds. A second alloy is 10% tin How many pounds of the second alloy

NemiM [27]

Answer:

30 pounds

Step-by-step explanation:

Amount of tin in first alloy + amount of tin in second alloy = amount of tin in mixture

0.15 (20) + 0.10 x = 0.12 (20 + x)

3 + 0.10 x = 2.4 + 0.12 x

0.6 = 0.02 x

x = 30

8 0

2 years ago

A number minus 3 is 5. write and solve an equation to find the missing number

Mrac [35]

a number can be written a "x".

"minus" is a key word for subtraction.

"is" is a key word for =.

So if we put that all together, we have

x-3=5

To solve it, we have to add 3, to cancel it out, and add 3 to 5.

x-3=5

+3 +3

x=8

---

hope it helps

7 0

2 years ago