Ineedbettergradesplz Ineedbettergradesplz

03-05-2022
Mathematics

contestada

Solve the equations x + y = 300 and 12x + 15y
4,140

Respuesta :

belleza49 belleza49

03-05-2022

Answer:

x=120

y=180

Step-by-step explanation:

x=300-y

12x+15y=4140

12(300-y)+15=4140

y=180

substitute

x=300-180

x=120

Answer Link

Otras preguntas

Is it possible to have less than 1 mole of atoms?

Simplify (3x − 5) (5x 1). 8x − 6 8x 4 8x − 4 2x − 4.

Find the values of x and y.

5 F2 (g) + 2 NH3 (g) -> N2F4 (g) + 6 HF (g) If you reacted 4.3 miles of F2 how many moles of HF would be produced?

The speed of sound varies depending on many factors including temperature, pressure, and humidity, but it is typically found to be approximately 550 m/s. What

Levi started collecting lunch boxes when he was 5 years old. He had 18 superhero lunch boxes, 24 outer space lunch boxes, and 21 rock band lunch boxes. )) Then

Jessica needs 6 5/8 cups of flour for her recipe. The box she has only has 7/8 cup of flour left in it. How many more cups of flour does she need? Enter your an

Help me please <3 ill give yall 20 points

How did the author of stories saved my life determine that he learns best through storytelling rather than in a traditional classroom setting?.

What are the five qualifications a material must meet to be classified as a mineral?.