Email us to get an instant 20% discount on highly effective K-12 Math & English kwizNET Programs!

#### Online Quiz (WorksheetABCD)

Questions Per Quiz = 2 4 6 8 10

### Grade 7 - Mathematics5.7 Changing the Subject of the Formula

 The area of a rectangular field is the product of its length and breadth is expressed in symbols are A = l * b Where A = Area l = length b = breadth In, A = l * b, A is the subject of the formula. This is useful to find the value of A when the values of 'l' and 'b' are given. Suppose the values of 'A' and 'l' are given and 'b' is to be found. The we have change the formula in such a way that 'b' is given in terms of 'A' and 'l' and 'b' is the subject of the formula. A = l * b Multiplying both sides by 1/l 1/l * A = l * b * 1/l. A/l = b Therefore b = A/l. Directions:Change the subject of the formula. Also write at least 5 examples of your own.
 Q 1: I = (PTR)/100, Change 'T' as the subject of the formula.T = 100/IPRT = 100I/PR Q 2: P = 2(l+b), Change 'b' as the subject of the formula.b = (P/2) + lb = (P/2) - l Q 3: V = lbh, Change 'b' as the subject of the formula.b = V/lhb = Vlh Q 4: I = (PTR)/100, Change 'P' as the subject of the formula.P = 100/ITRP = 100I/TR 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:

• Instant scoring of online quizzes
• Progress tracking and award certificates to keep your student motivated
• Unlimited practice with auto-generated 'WIZ MATH' quizzes
• 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