henry wants to join a book of the month club the first club cost $40 to join and $10 per book the second club cost $15 per book and has no fee to join how many books would need to be purchased from each club for the clubs to cost the same?

tayeserqp p201311

we can set up an equation to find the girls' ages. the equation is         28=0.5x-5+x. (comment if you need me to explain how i got this equation.) so, you add x and 0.5x to get 1.5x and add 5 to each side. your new equation is 33=1.5x. now divide both sides of the equation by 1.5 to get 22=x. because x is mary's age, to find jasmine's age we subtract mary's age from 28. we find that mary is 22 years old and jasmine is 6 years old.

the answer is a

step-by-step explanation:

the answer would be 9 because if it is perpendicular to the green line. the red lines slope is the opposite or reciprocal of the slope of the green line.