kingchef0312 kingchef0312

10-12-2019
Mathematics

contestada

1. 2x = 2 - 9
21y = 4 - 6x

Respuesta :

khalid477 khalid477

31-12-2019

2x=2-9

21y=4-6x

2x=-7

6x=4-21y

x=-7/2

6(-7/2)=4-21y

-21=4-21y

-21-4=-21y

-25=-21y

y=-25/-21

:.y=1 4/21.

Answer Link

Otras preguntas

which of the following is a probable source of earths magnetic field? A. the sun B. the earths tides C. earths outer iron core D. the moon

Which of the following is equivalent to sin theta csc(–theta) wherever sin theta csc(–theta) is defined? F. –1 G. 1 H. –tan theta J. tan theta K. –sin2 thet

Which of the following is equivalent to (5 /k) + ((k + 3) /(k + 5)) ? A. (k +8) /(2k + 5) B. (k + 8) /k(k + 5) C. 5(k + 3) /k(k + 5) E. (k^2+ 8k + 25) /k(k + 5)

The graph of y = −5x^2 + 9 passes through (1,2a) in the standard (x,y) coordinate plane. What is the value of a ? F. 2 G. 4 H. 7 J. −1 K. −8

How do you change 26.25% into a number

In a group of 10 students, 7 are 13 years old and 3 are 17 years old. What is the average (arithmetic mean) age of these 10 students?

Prove the following identity :Sin α . Cos α . Tan α = (1 – Cos α) (1 + Cos α)

why do you think accurate measurement of time became possible much after accurate measurement of length and mass

if employee a logged 120 hours of travel in four years and employee b logged hours of travel at 20% higher rate how many more hours did employee b have than emp

If x and y are real numbers such that x > 1 and y < −1, then which of the following inequalities must be true? A. x/y> 1 B. |s|^2 > |y| C. x/3− 5 &g