Home Order Products Login Online Courses Search Contact Us
Update Profile
Sign Up
Current Curriculum
kwizNET Subscribers, please login to turn off the Ads!
Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
3.14 Word Problems - Negative Exponents

Example: Find the number to be multiplied (-6)-1, so as to get 7-1as the product?

Solution: Let x be the number to be multiplied to (-6)-1 so that the product equals 7-1.
Therefore (-6)-1 * x = 7-1.
-(1/6) * x = 1/7 (Since a-1 = 1/a)
Multiplying both sides with -6 we get,
-6 * -(1/6) * x = -6 * (1/7)
Therefore x = -6/7

Verification: Substitute x value in above we get,
-(1/6) * -6/7 = 1/7 = RHS.
Therefore LHS=RHS.

Directions: Solve the following problems. Also write at least ten examples of your own.
Q 1: Find the number to be multiplied (-7)-1, so as to get 9-1as the product?
7/9
-7/9

 Q 2: Find the number to be multiplied (8)-1, so as to get 6-1as the product?
4/3
-4/3

Q 3: Find the number to be multiplied (7)-1, so as to get 8-1as the product?
7/8
-7/8

 Q 4: Find the number to be multiplied (-8)-1, so as to get 6-1as the product?
4/3
-4/3

Question 5: This question is available to subscribers only!

 Question 6: This question is available to subscribers only!


Subscription to kwizNET Learning System offers the following benefits:

  • Unrestricted access to grade appropriate lessons, quizzes, & printable worksheets
  • Instant scoring of online quizzes
  • Progress tracking and award certificates to keep your student motivated
  • Unlimited practice with auto-generated 'WIZ MATH' quizzes
  • Child-friendly website with no advertisements
  • Choice of Math, English, Science, & Social Studies Curriculums
  • Excellent value for K-12 and ACT, SAT, & TOEFL Test Preparation
  • Get discount offers by sending an email to discounts@kwiznet.com

Quiz Timer

Educational Links Privacy Policy Terms of Service Contact Us