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Tutors Answer Your Questions about Evaluation Word Problems (FREE)
Question 432654: Carla and Benicio work in a men's clothing store. They earn commission from each suit and each pair of shoes they sell.Fo selling 3 suits and one pair of shoes, Carloa has earned $47 in commission. For selling 7 suits and 2 pairs of shoes, Benicio has earned $107 in comission. How much do the salespeopole earn for the sale of a suit? For the sale of a pair of shoes?
Click here to see answer by jorel1380(2518)   |
Question 432836: Given these sets:
A = {1,2,3,4}
B = {3,4,5,6,7}
C = {3,5,7,9}
list the elements of this set:
C⋂(A⋃B)
Click here to see answer by Edwin McCravy(8879)  |
Question 433116: The speed r to drive a constant distance is inversely proportional to the time t. Shari drove from home to her vacation cottage in 6hrs at a rate of 35 miles per hour. Find the rate she needs to drive to get back home in 5 hrs.
Click here to see answer by rwm(914) |
Question 433556: Nick has a beautiful rectangular garden, which measures 3 m by 3 m. He wants to create a uniform border of river rocks around three sides of his garden. If he wants the area of the border and the area of his garden to be equal, how wide should the border be?
I've got a length of 9 - 2w. And a width of 4.5 However my textbook's got an answer of 0.84 m.
Please clarify as to what I've done incorrectly by showing all steps.
Click here to see answer by josmiceli(9645)  |
Question 433567: An object that is projected straight downward
with initial velocity v feet per second travels a
distance s=vt+16t^2, where t = time in seconds.
If Ramón is standing on a balcony 84 feet above
the ground and throws a penny straight down
with an initial velocity of 10 feet per second, in
how many seconds will it reach the ground?
Click here to see answer by ankor@dixie-net.com(15622)  |
Question 433717: You are driving at a constant speed on a freeway. At 4:30 PM you drive by a sign that gives the distance to Montgomery, Alabama as 84 miles. At 4:59 PM, you drive by another sign that gives the distance to Montgomery as 56 miles.
a) Write a linear equation that gives your distance from montgomery in terms of time t. (Let t=0 represent 4:30 pm and let t be measured in minutes.)
b) Use the equation in part (a) to find the time when you will reach Montgomery.
Click here to see answer by rwm(914) |
Question 433715: After opening the parachute, the descent of a parachutist follows a linear model. At 2:08 PM the height of the parachutist is 7000 feet. At 2:10 PM the height is 4600 feet.
a) Write a linear equation that gives the height of the parachutist in terms of time t. (Let t = 0 represent 2:08 PM and let t be measured in seconds.)
b) Use the equation in part (a) to find the time when the parachutist will reach the ground.
Click here to see answer by josmiceli(9645) |
Question 434207: Discrete Math:
1. Among the residents of New York City (population 7,000,000), must there be at least two people with the same number of hairs on their heads, why or why not? Assume the average head contains 300,000 hairs.
2. Show that in a group of 85 people at least 4 must have the same last initial.
Click here to see answer by richard1234(5390)  |
Question 435522: the logistic growth function f(t)= 500/(1+83.3e^-0.162t) describes the population of an endangered species of birds t years after they are introduced to a non-threatening habitat. How many birds are expected in the habitat after 10 years?
Click here to see answer by stanbon(57203) |
Question 435561: Can you help me solve this word problem please and show me how you got the answer. If possible draw a picture of a pythagorean theorem to help me?
Mr and Mrs Jones commute to work each morning. Mr Jones drives 6 miles east to his office. Mrs Jones drives 8 miles south to her office. How many miles away do Mr and Mrs Jones work from each other?
Thank you very much.
Click here to see answer by shree840(260)  |
Question 435588: How do I solve and set this word problem in a chart and equation?
"Jim is twice as old as Karen. Eight years from now, Jim will be twenty years older than Karen. How old is Jim now? Set up a chart and equation to solve."
Click here to see answer by stanbon(57203) |
Question 435666: Hi i have a question on trigonometry that i am finding quite challenging:
Prove that the triangle ABC can be found from:
½ c² Sin A Sin B
Sin (A+B)
its 1/2 c² SinASinB/Sin(A+B)
i have tried using the three area of triangle formulas but the derivation is beyond me thanks
Click here to see answer by robertb(4012)  |
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