braedyna braedyna
  • 18-12-2021
  • Mathematics
contestada

Can somebody please help me i need this urgently.

Can somebody please help me i need this urgently class=

Respuesta :

frascoalexander frascoalexander
  • 18-12-2021

Answer:

multiple choice is worth 2

short response is worth 4

Step-by-step explanation:

23x + 10y = 86

28x + 5y = 76

solve by elimination

multiply the top by -1 and the bottom by 2

-23x + -10y = -86

56x + 10y = 152

add them

33x = 66

x = 2

with x = 2 plug x into one of the equations

23x + 10y = 86

23(2) + 10y = 86

46 + 10y = 86

10y = 40

y = 4

x = 2 and y = 4 so

multiple choice is worth 2

short response is worth 4

Answer Link

Otras preguntas

What’s 5.3 + (-7.45) equal to and please do it step by step
Why were Bostonians angry with British troops in their town
draw a rectangle with an area of 8 square centimeter​
What does horizontal line between a circle and a square represent
Jill is factoring the expression 13XY -52y. Her work is shown below
What is the point-slope equation of a line with slope -4 that contains the point (-2, 7)? A.y + 7 = -4(x + 2) B.y - 7 = -4(x - 2) C.y + 7 = -4(x - 2) D.y - 7 =
please help! C) (–0.6m³n²)³ D) (–2xy³)² E) (–xy^4b²)^4
Describe the error Sadie made, and explain how to find the correct answer.
MICR is an input or output devices
How do electrons impact the movement of electricity?