Fatimasalazarcont Fatimasalazarcont
  • 11-05-2020
  • Mathematics
contestada

A test is worth a total of 150 points and contains 70 questions. Some of the questions are worth 2 points and some are worth 4 points.

Respuesta :

joshleemelendez
joshleemelendez joshleemelendez
  • 12-05-2020

Answer:

x + y = 70

2x + 4x = 150

y = 70 - x

2x + 4( 70 - x) = 150

2x + 280 -4x = 150

280 -2x = 150

2x = 280 -150

2x = 130

x = 65 (2-Point Questions)

x + y = 70

65 + y = 70

y = 70 -65 = 5 (4 Point Questions)

Checking work:

2(65) +4(5) =150

130 + 20 = 150

150 = 150

Check!

Step-by-step explanation:

Answer Link

Otras preguntas

WILL GIVE BRAINLIEST solve for the missing piece. Round answer to the nearest tenth when necessary.
Explain ONE barrier to agricultural development that prevents counties in South Florida from producing oranges as a crop.
True or false, if false what would the correct term be?
Use the method of symmetry to find the extreme value of each quadratic function and the value of x for which it occurs h(x)=1/2(3-x)(2-x)
Which of the following systems defends the body against infectious organisms and other invaders? a Immune system b Respiratory system c Endocrine system d
chemical formula name for V2(SO2)3 (aq) explain why​
What is the role of peer assessment in the learning process?​
Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played. She found that the restaurant was playing country 111
Solve the given pair of linear equations by reducing to a pair of linear equations.... 8/x+y-1/x-y=1/2,4/x+y +1/x-y =1
Help filling in the blanks with the correct expression in French...