Showing posts with label Algebra. Show all posts
Showing posts with label Algebra. Show all posts

Thursday, August 11, 2022

Algebra Practice: Problems with Two Known Variables

This practice test includes ten algebraic expressions in which there are two known variables. Simply enter numbers for the two variables and solve. I created this post in adaptive mode so that readers will see the correct answer immediately after clicking on each slide. Feel free to write down your answers and compare your answers and steps with mine. You might approach some of these problems in a different manner and still get the correct answer, which is fine.

Directions

  1. Click on the first slide below to enlarge to full screen.
  2. Click on each slide or on the thumbnail at the bottom of the screen to advance to the next slide.

Thanks so much for visiting my Student Survive 2 Thrive blog. Find additional resources by clicking on any of the posts below or via my site map, search bar, or topics tabs.

Algebra Practice with 2 Known Variables

Created by Katrena. All rights reserved.

What is 5x + 2y  when x=3 and y=4 ? Possible choices: 23, 7, 48, 14

What is 5x + 2y  when x=3 and y=4 ? 5(3)+2(4)=15+8=23

What is ⅓ x - ¼ y  when x=30 and y=20? Possible answers: 15, -1/720, 5, -5

What is 1/3x - 1/4y  when x=30 and y=20? ⅓(30)-¼(20) = 30/3-20/4 = 10-5 = 5

What is 2x-7-3y  when x=7 and y=1? Possible answers: -3, 24, 3, 4

What is 2x-7-3y  when x=7 and y=1? 2(7)-7-3(1) = 14-7-3 = 4

What is ¾ x + 2 - 6y  when x=4 and y=2? Possible answers: -9, -7, 7, 17

What is ¾ x + 2 - 6y  when x=4 and y=2? ¾(4)+2-6(2)=12/4+2-12=3+2-12=-7

What is 100-12(x-1)+10y  when x=5 and y=2? Possible answers: 72, 132, 48, 27

What is 100-12(x-1)+10y  when x=5 and y=2? 100-12(5-1)+10(2)=100-12(4)+20=100-48+20=72

What is 3(2x+y)  when x=3 and y=5 ? Possible answers: 3, -6, 48, 33

What is 3(2x+y)  when x=3 and y=5 ? 3[2(3)+5]=3(6+5)=3(11)=33

What is 20x+40y-160  when x=4 and y=2 ? Possible answers: -160, 0, 320, -178

What is 20x+40y-160  when x=4 and y=2 ? 20(4)+40(2)-160=80+80-160=0

What is 7.3x+1.5y  when x=3 and y=4 ? Possible answers: 225, 22.5, 27.9, 83

What is 7.3x+1.5y  when x=3 and y=4 ? 7.3(3)+1.5(4)=21.9+6=27.9

What is 12x-5y  when x=5 and y=-5 ? Possible answers: 85, 17, -35, 35

What is 12x-5y  when x=5 and y=-5 ? 12(5)-5(-5)=60-(-25)=60+25=85

What is 15+1½ x-4.5y  when x=6 and y=10 ? Possible answers: 21, 3, 19.5, -21

What is 15+1½ x-4.5y  when x=6 and y=10 ? 15+3/2(6)-4.5(10)=15+9-45=-21

Find more resources at StudentSurvive2Thrive.blogspot.com


Tuesday, August 9, 2022

Algebra Practice: Problems with One Known Variable

These algebraic practice problems include one known variable. Simply plug in the given number for x and solve. I created this practice test in adaptive mode so that the correct answer appears along with the process for calculating the answer immediately after the problem is presented. Feel free to write down your answers and check them as you go.

Directions

  1. Click on the first image below to enlarge.
  2. Click on the slide or thumbnail at the bottom to advance to the next slide.

Thanks so much for visiting my Student Survive 2 Thrive blog! Find more resources at my site map, topics tabs, or try typing your desired topic in my search bar. Here are a few additional math resources that you may find helpful:

Algebra Practice Problems with One Known Variable

Created by Katrena. All rights reserved.

What is 1+2x when x=2? Answer choices: 2, -1, 5, 23

Correct answer is 5: What is 1+2x when x=2?  1+2(2)= 1+4= 5

What is 5+4x when x=3? Answer choices are 27, 17, 12, 8

Correct answer is 17: What is 5+4x when x=3?  5+4(3)= 5+12= 17

What is 4x-2 when x=4? Answer choices: 14, 6, 8, 42

Correct answer is 14: What is 4x-2 when x=4?  4(4)-2= 16-2= 14

What is 15-3x when x=3? Possible choices: 36, 24, -18, 6

Correct answer is 6: What is 15-3x when x=3?  15-3(3)= 15-9= 6

What is 7x+20 when x=5? Possible choices: 32, 25, 55, 175

Correct answer is 55: What is 7x+20 when x=5?  7(5)+20= 35+20= 55

What is 100+15x when x=1? Possible choices are 115, 116, 251, 85

Correct answer is 115: What is 100+15x when x=1?  100+15(1)= 100+15= 115

What is 5x-5 when x=5? Possible choices: 5, 20, 30, 0

Correct answer is 20: What is 5x-5 when x=5?  5(5)-5= 25-5= 20

What is 13+2x when x=6? Possible choices: 25, 90, 39, 1

Correct answer: 25 What is 13+2x when x=6?  13+2(6)= 13+12= 25

What is 7x+58 when x=0? Possible choices: 0, 7, -51, 58

Correct answer is 58. What is 7x+58 when x=0?  7(0)+58= 0+58= 58

What is 50-7x when x=1? Possible choices: 57, 50, 43, 1

Correct answer is 43. What is 50-7x when x=1?  50-7(1)= 50-7= 43

Find more math practice at StudentSurvive2Thrive.blogspot.com