brownies2007 brownies2007

15-06-2019
Mathematics

contestada

{8x + 9y = −3 6x + 7y = 1 What values of x and y satisfy the system of equations

Respuesta :

wolf1728 wolf1728

15-06-2019

Answer:

A) 8x + 9y = −3

B) 6x + 7y = 1

We multiply A) by -(6/8)

A) -6x -6.75y = 2.25 then we add this to equation B

B) 6x + 7y = 1

.25y = 3.25

y = 13

and x = -15

Step-by-step explanation:

Answer Link

Otras preguntas

The evaporation of sweat is an important mechanism for temperature control in some warm-blooded animals. a. What mass of water must evaporate from the skin of a

Write the following as an equation. Then solve. The sum of eight times a number, and 8, is equal to seven times the number Write the above sentence as an equati

the value of c guaranteed to exist by the Mean Value Theorem for V(x) = x² in the interval [0, 3] is...? a) 1 b) 2 c) 3/2 d) 1/2 e) None of the above

An X-Ray machine delivers a radiation dose of 5mRem/hr. at 3ft from the machine. How far will the X-Ray technician have to move to reduce his exposure to 2mRem/

Look at the reaction below. Which substance is the base in the reaction? 2H2O (l) H2SO4 (aq) CaSO4 (aq) Ca(OH)2 (aq)

name of compound of Ca(HCO)2

3. Were you able to restore the land? Why or why not?

What is the value of x?

Which of the following was the main reason why Irish immigrants moved to the United States in such large numbers in the 1840’s?

By first calculating the angle of LMN, calculate the area of triangle MNL. You must show all your working.