Sandy asks…
Math Home Work Help Please!?
Mason is purchasing a new phone. He must choose one of three different phone colors. He must then choose one of five ringtones. In the diagram below, each letter represents a phone color, and each number represents a ringtone. If Mason randomly chooses a color and a ringtone, what is the probability that he will choose Color C and Ringtone 4?
A. 1/3
B. 1/5
C. 1/15
D. 1/12
Link To See: http://media.apexlearning.com/Images/200709/07/751d98d3-99a4-43bf-8dc2-53a2187625b2.gif
Neil Walker answers:
To calculate this use the equation p(b) = p(c) ∙ p(r), where p(b) is the probability of picking a phone with both of any two particular features; p(c) is the probability of picking a phone of a certain color, and p(r) is the probability of picking a particular ring-tone. Since there are 3 colors, then p(c) = 1/3, and since there are 5 ring-tones, p(r) = 1/5. So the probability of picking both is p(b) = (1/3) ∙ (1/5) = 1/15. So the answer is C.
Ruth asks…
Math home work help plz find the equation and answer for the calories?
paula mixed 2 cups of sunflower seeds and 3 cups of raisins to make a snack for a hike. She figured that the mixture would provide her with 2900 calories of snack. find the number of calories per cup of raisins if it is 400 less then the number of calories per cup of sunflower seeds.
Neil Walker answers:
Let a cup of raisins have x calories. Then, we have:
2*(x+400) + 3*x = 2900
2x + 800 + 3x = 2900
5x = 2100
x = 420
Lizzie asks…
Math home work help plz find the equation and answer for the?
the Eiffel tower is 497 ft. taller then the washington Monument. If each of the monuments we 58 ft shorter, the Eiffel Tower would be twice as tall as the washington Monument. How tall is each?
Neil Walker answers:
hmmmm…a geography question. and a very good question at that. you know…i’ve often wonder the very same thing myself. let’s see…
well…let:
x = washington monument now in feet. so
x + 497 = eiffel tower now in feet
now
x – 58 ft = wm
2(x-58) = et so…
497 + 58 = 555 ft wm
wm = 555 ft
et = 555 + 497 = 1052
and less 58 feet gives
wm = 497 ft
et = 994 ft
how’s that…dead reckoning, mental acuity, sound reasoning, old age.
very good question.
ans: Washington Monument = 555 ft; Eiffel Tower = 1052 ft
good luck.
David asks…
Math home work help The local newspaper publishes a list of the five most popular radio stations.?
Lisa’s favorite station is not on the list at school she asks two of her friends what their favorite station is, and they both choose lisa’s favorite station should have been on the list.
Explain why lisa’s conclusion is not vaild by giving two reasons why her sample is biased
Neil Walker answers:
Hi,
Her sample is biased because your friends usually tend to be similar to you. Therefore by simply asking your friends, who also listen to country like you, is not a fair and unbiased sampling.
In addition to just talking to her friends, a second reason this sample is biased is that it is a very small sample at a single location and time. I doubt that when they look for trends in the voting this week in Florida’s primary that they will simply ask 2 people both at the Breakers Hotel in Palm Beach. Somehow, I doubt that that sample would adequately reflect all of Florida.
I hope that helps!! 
Joseph asks…
I need help with my math home work? I am taking Brief calculus I can pay you decent?
I am takink this class online and need help in doing my home work
Neil Walker answers:
yup!!!
wats ur homework.. u didnt mentioned tat only!!
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