jeanna5 jeanna5

31-05-2018
Mathematics

contestada

What is the solution to this system of equations? 3x + 2y=45 , 4x-y=5

Respuesta :

MrGumby MrGumby

01-06-2018

The solution is (5, 15)

Multiply the second equation by 2 and then add through.

3x + 2y = 45
8x - 2y = 10
-----------------
11x = 55
x = 5

Then plug in to get the y value

3(5) + 2y = 45
15 + 2y = 45
2y = 30
y = 15

Answer Link

anavela2339 anavela2339

23-11-2020

Answer:

5, 15

Step-by-step explanation:

Answer Link

Otras preguntas

Tara's golf score was 23 less than twice Amber's score. If Tara's score was 93, which equation could you use to find Amber's score? Let a = Amber's score

If $10,000 is invested at an interest rate of 3.5% each year, what is the value of the investment in 7 years? Write an exponential function and solve.

who went into the concentration camps

For a portrait of a child, you want to focus on what?

Starting at home, Emily traveled uphill to the hardware store for 60 minutes at just 6 mph. She then traveled back home along the same path downhill at a speed

Briefly describe how the Sun produces energy. plz and thank you :)

Ethylene, a gas found in nature, is commonly used to ripen bananas and other fruits. Which compound is ethylene?

What are the odds of picking an "s" in the word Mississippi? Answers: 4 : 11 4 : 10 4 : 5 4 : 7

The angular momentum of an electron in each of its orbits must be some multiple of: wavelength Planck's constant velocity of light circumference

Can 12 cm 12 cm and 28 cm form a triangle