Use the distributive property backwards.
xp+yp=z become p(x+y)=x, which solves to p=x/(x+y)
Answer:
A) 0.15
B) 0.36
Step-by-step explanation:
First Box consist 1 red pills and 19 blue pills
second box consist 6 red pills and 14 blue pills
Third box consist 2 red pills and 18 blue pills
a) Prob ( randomly chosen pill is red) 

b)Prob ( 1 reds and 10 blue pilss) =

well, let's notice something, we have two 45° angles, now each of those will give use an equal opposite side, namely if that one side is "x", the other is her twin, "x" as well.
is a right-triangle, so we can use the pythagorean theorem, and we know the sides are x,x,6.

Well for the small box of Cornflakes you want to divide $6.30 by 18 and you should get $0.35 which is how much each oz cost.
For the large box you want to convert 2.2 lb to oz, you will get 35.2 oz. Next just do the same divide $8.80 by 35.2 and get $0.25 which is the cost for each oz in the large box.
The model of the granola bars is an illustration of <em>ratios and proportions</em>.
The model that shows the total serving is model A
The given parameters are:


So, the number of servings in both bars is:

Substitute 2 for Bars and 2/5 for Servings

Express as multiplication



The total number of servings is 5
The model that shows a total serving of 5 is model A (see attachment)
Read more about ratios and proportions at:
brainly.com/question/7810782