daysyperez2003 daysyperez2003

10-07-2020
Mathematics

contestada

Solve the system of equations using substitution.
3x + 7y = 19
-X + 8y = -27

Respuesta :

mcovey2016 mcovey2016

10-07-2020

Answer:

x= 11

y= -2

Step-by-step explanation:

8y + 27 =x

3(8y+27) + 7y =19

24y + 81 + 7y =19

31y + 81 =19

-81 -81

31y = -62

31 31

y = -2

-x + 8(-2) = -27

-x - 16 = -27

+16 +16

-x = -11

x= 11

Answer Link

Otras preguntas

The big bang theory states that _________. Which phrase best completes the sentence? a.the universe will explode b.the universe began as a small, dense ball of

Two friends, Hailey and Jenna bought two tickets to see a play at a local theater . Each ticket cost $17.25. Each friend donated $1 to the theater's youth progr

Can someone please help me I am stuck.

- A quarterback threw a football 10 yards 2 feet 1 inch. How many inches did the quarterback throw the football?

Determine the volume of the cylinder.radius 16ft height 7ft a)448 pi cubic feetb)252 pi cubic feetc)678 pi cubic feet

In STU, the measure of U=90° , ST=33 feet, US= 20 feet. Find the measure of T to the nearest tenth of a degree.

According to the passage, what caused the Rosetta Stone to be unearthed? • A note led the soldiers to the spot. Three corners were missing from the slab. The so

A bus route takes about 45 minutes. The company's goal is MAD of less than 0.5 minutes. One drive's times for 9 runs of the route are shown. Did the bus driver

Someone help? Number 7 for brainliest.

find the value of X in the triangle shown below