londonwilk8 londonwilk8

02-04-2020
Mathematics

contestada

(7x-y=7
(x+2y=6 estimate the solution to the system of equations

Respuesta :

ChengYuInChina ChengYuInChina

16-07-2022

Answer:

x=4/3; y=7/3

Step-by-step explanation:

x+2y=6,

x=6-2y.

7(6-2y)-y=7,

42-14y-y=7,

15y=35,

y=7/3.

x+2y=6,

x+2*7/3=6

x=4/3

∴x=4/3, y=7/3.

Answer Link

Otras preguntas

Which compound is soluble in water?(1) PbS (3) Na2S(2) BaS (4) Fe2S3

Based on intermolecular forces, which of these substances would have the highest boiling point? (1) He (3) CH4 (2) O2 (4) NH3

Opium war taiping rebellion and boxer rebellion is most closely associated with

write each power as a product of factors 2^4 4^2 9^2 8^5 5^3 7^3

What pH must organisms maintain?

Why might a telescope be built high in the mountains above weather sys tems. How does this make observing the sky easier?

Describe the water that is most likely to sink to the bottom of the ocean. A. warm, salty water B. warm water with no salt C. cold, salty water D. cold wat

[1] Thomas Paine’s Common Sense was published in 1776. [2] The Revolutionary war began that same year.

What is the Molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution? (1) 1 M (3) 0.04 M (2) 2 M (4) 0.5 M

Which of these elements has the lowest melting point? (1) Li (3) K (2) Na (4) Rb