martinezbrooklynne2 martinezbrooklynne2

11-03-2021
Mathematics

contestada

THIS IS FOR MY TEST PLEASE HELP
solve this system by ELIMINATION. show ALL steps please.
3x+4y=24
x-8y= -20

Respuesta :

11-03-2021

2(3x+4y) = 2(24)
6x+8y = 48
Add both the equations
6x + 8y = 48
+ x - 8y = -20
—————————
7x = 28
x = 28/7
x = 4

Plug in this value in the second equation

(4) - 8y = -20
-8y = -24
y = -24/-8
y = 3

Therefore:
x = 4
y = 3

Answer Link

Otras preguntas

Eli had $10 but lost come of it. His mom doubled the money he had left. Eli wrote the expression 2(10-k) to show how much money he has now, where k id the amoun

According to Florida’s implied consent law if during a traffic stop you refused to be tested for the presence of alcohol or drugs in your system your license wi

Joe left the hospital at the same time as Eugene. They drove in opposite directions. Eugene drove at a speed of 70 km/h. After three hours they were 360 km apar

Which of the following is an example of a DEPENDENT (subordinate) clause? I like hotdogs the little baby cries all night until the sun goes down the

did the germans archeive their goal of capturing Paris in their March 1918 offensive? why or why not?

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a highe

An air mattress is filled with 16.5 moles of air. The air inside the mattress has a temperature of 295 K and a gauge pressure of 3.5 kilopascals. What is the vo

HUGE QUESTION I NEED ANSWERED. I'm giving a brainliest and 98 points to whoever answers correct. Read the following three statements. Use the Law of Detachment

Find the sum of -3a and 5a -3

Adrew drove 456 miles in 8 hours what was his average driving rate per hour?