P varies partly as q and partly as the square of R. When P =6,q =12,R=4 and when P=10, q=12, R=5.a: find the formula connecting P, q and R . b : find the value of P when q=15, R=25.c: find the value of R when q=4 and P=2.5 .

Question

P varies  partly as q and partly as the square of R. When P =6,q =12,R=4 and when P=10, q=12, R=5.a: find the formula connecting P, q and R . b : find the value of P when q=15, R=25.c: find the value of R when q=4 and P=2.5 .

oobleck · Answer

p = aq + br^2 Now use your data points to get 12a+16b = 6 12a+25b = 10 I suspect a typo