Question

make r the subject of the formula p=10(q-3r) divided by r

Answer 1

Answer:

(10q-p)/30=r

Step-by-step explanation:

p=10(q-3r)

distribute

p = 10*q - 10* 3r

p = 10q - 30r

subtract 10q from each side

p-10q = 10q-10q-30r

p-10q = -30r

divide by -30

(p-10q)/-30 = -30r/-30

-(p-10q)/30 =r

distribute

(-p+10q)/30 = r

i would rewrite to put the positive term 1st, put that is a personal choice ( my negative get lost in the parenthesis)

(10q-p)/30=r