Of the qmb students who use the study guide 60% get high grades. 15% of the qmb students use the study guide and receive high grades. what percent of the qmb students use the study guide? selected incorrect [none given] correct correct 25%

Let x be the percent of qmb students who uses study guide.

Since we are given that out of the qmb students who use the study guide, 60% get heigher grades, out of x %, 0.6x will get higher graded.

But given 0.6x = 15

                x=

the infinity sign

step-by-step explanation:

answer: y=4000x+14000

step-by-step explanation: