MATHEMATICS PROBLEM SOLVER

It is a site for parents, students and teachers. This site can help O-LEVEL or GCSE secondary school students in mastering mathematics subject. It intends to involve the learners by making them follow up the examples before they can do questions on their own at the TRY THIS.... section. There are some videos, tests, quizzes and past examination questions. Learning the examples will ultimately give students the required confidence in solving various questions in mathematics.

Sunday 29 April 2018

EXPONENTIALS 1

If 5^2w (400^w) = 100,000 ; Find w.

Solution

5^2w (400^w) = 100,000

(5²)^w (400^w) = 100,000

(25)^w (400^w) = 100,000

(25 x 400)^w = 100,000

(10000)^w = 100,000

(10⁴)^w = 10⁵ [since 10⁵ = 100,000]

10^4w = 10⁵ (Bases are alike, so they cancel out)

4w = 5

4 4

w = ⁵/4

TRY THIS…………………………….

NECTA 2004 QN. 4b

If 3^2t (4^t) = 6 ; Find t.

MATHEMATICS PROBLEM SOLVER

Sunday 29 April 2018

EXPONENTIALS 1

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