elahsamanrique elahsamanrique

23-04-2020
Mathematics

contestada

(08.03)
Solve the system of equations and choose the correct answer from the list of options. (4 points)
x-y=7
y = 3x + 12

Respuesta :

princedavidanicet6 princedavidanicet6

23-04-2020

Answer:

rearrange them properly to get

x-y=7

-3x+y=12

( by elimination method)

x-y = 7

-3x+y=

(x+ –3x) + (–y+y) = (7+12)

-2x+0= 19

x= -9.5

from eqn(i)

x-y=7

-9.5 - y=7

-y=16.5

y= -16.5

Answer Link

Otras preguntas

how does the ocean influence the weather in california

the fertile crescent was fought for as a desirable place in which to live because it had; there may be more then 1 question water, a warm climate, precious jewe

French is still widely spoken in which North African countries? Libya, Egypt, and Syria Tunisia, Algeria, and Morocco Tunisia, Libya, and Egypt Egypt, Tunisia,

What percent of 200 is 150

Correct the underlined word The large number of Protestants and Buddhist in central America and the Caribbean is a sign of European influence

What is the solution to the system of equations? 4x + y = 2 x - y = 3 ( ______ , ______ )

Emily takes different routes when she rides her bike to school each day. Going home, she always takes the same 4 miles route. Write an algebraic expression to r

A cone has a base radius of 7 centimeters and a height of 21 centimeters. What is the volume of the cone? A. 28π cm3 B. 49π cm3 C. 147π cm3 D. 343π cm3

A rectangular box has a height of 10 cm. If the width is 1.5 times the height and the depth is the length of the width, what is the surface area of the rectang

The style of a passage determines how the __________ is presented. A. theme B. personification C. figurative language D. aesthetic quality.