R is inversely proportional to A. R = 12 when A= 1.5
a) Work out the value of R when A = 5.
b) Work out the value of A when R = 9

R = 40

A= 1.125

Step-by-step explanation:

12(R) ÷1.5(A) =8

1.5(A) x 8 = 12(R)

1.5(A) x 8 = 12(R) 12(R) ÷ 8 = 1.5 (A)

for 1.5 = 12, you need to times 8

A = 5 and you want to get to R so you times by 8

5 x 8 = 40 | R = 40

R = 9

9 ÷ 8 = 1.125

A = 1.125

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

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