Make r the subject of the formula: 1/r -1/p = 1/t
- Take the 1/p to the other side of the equation1/r = 1/t + 1/p2) Add the fractions together by making the denominators the same1/r = (p+t)/pt3) Cross multiple by multiplying each side of the equation by the other side’s denominatorpt = r(p+t)4) Divide both sides by (p+t)pt/(p+t) = r
AA
Related Maths GCSE answers
All answers ▸Solve the following quadratic equation for X: X^2 -10X + 24=0
Differentiate y = 3x^4 + 6x^3
3 shops sell TVs and all 3 are having sales. Here are the three original prices of the TVs and their discounts: X12: £150 (25%), Teli-vise: £235 (1/2 off), Xpert: £60 (with a year of weekly £8 payments). Which TV is the cheapest once discounted.
2a + 6b = 24, 3a + b = 20