Tutors Answer Your Questions about Systems-of-equations (FREE)
Question 1120106: I'm having trouble. The question is to simplifly the expression and solve the equation.
v^2+6v+8
-------
v^2+v-12 divided by
v+2
----
2v-6
I came up with 1 for the answer can you tell me if that is correct, thank you
Click here to see answer by ikleyn(52756)   |
Question 1120623: Ram is speeding along a highway when he sees a police motorbike parked on the side of the road right next to him. He immediately starts slowing down, but the police motorbike accelerates to catch up with him. It is assumed that the two vehicles are going in the same direction in parallel paths.
The distance that Ram has traveled in meters 't' seconds after he starts to slow down is given by d(t)=150+75t-1.2t^2. The distance that the police motorbike travels can be modeled by the equation d(t)=4t^2. How long will it take for the police motorbike to catch up to Ram?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 1122467: This question is along the lines of determining whether a data set is linear, quadratic, or exponential.
The data set is this: (the depreciation of a used car over time)
X = Years
Y = Value in dollars
(0, 12,575)
(1, 11,065)
(2, 9,750)
(3, 8,520)
(4, 7,540)
To me, this data set does not seem to linear, quadratic, or exponential, however my textbook does not say anything about a 'neither' or 'none' option. My only guess is it might be exponential?
Click here to see answer by josgarithmetic(39614) |
Question 1122467: This question is along the lines of determining whether a data set is linear, quadratic, or exponential.
The data set is this: (the depreciation of a used car over time)
X = Years
Y = Value in dollars
(0, 12,575)
(1, 11,065)
(2, 9,750)
(3, 8,520)
(4, 7,540)
To me, this data set does not seem to linear, quadratic, or exponential, however my textbook does not say anything about a 'neither' or 'none' option. My only guess is it might be exponential?
Click here to see answer by solver91311(24713)  |
Question 1123329: Fitness Equipment. In 2012, the Mio® Classic Heart Rate watch cost $39.99 and the Mio® Drive Plus Heart Rate Watch cost $59.99. A nonprofit community health organization purchased 35 heart-rate watches for use at a wellness center. If the organization spent $1639.65 for the watches, how many of each type did they purchase?
Click here to see answer by ikleyn(52756) |
Question 1123844: Given a graph with the vertex (3,-5) and the point (-1,9) find the equation of the graph. (Long way;show all steps)
I've tried to figure this out for the past hour but can't seem to. Thank you very much for the help.
Click here to see answer by htmentor(1343)  |
Question 1125416: Please help me set this up and solve it, than kyou so much.
One evening 1600 concert tickets were sold for the Fairmont Summer Jazz Festival. Tickets cost $20 for covered pavilion seats and $10 for lawn seats. Total receipts were $22,000. How many tickets of each type were sold?
How many pavilion seats were sold?
____
Lawn seats?___
Click here to see answer by josgarithmetic(39614) |
Question 1125416: Please help me set this up and solve it, than kyou so much.
One evening 1600 concert tickets were sold for the Fairmont Summer Jazz Festival. Tickets cost $20 for covered pavilion seats and $10 for lawn seats. Total receipts were $22,000. How many tickets of each type were sold?
How many pavilion seats were sold?
____
Lawn seats?___
Click here to see answer by math_helper(2461)  |
Question 1125412: Please help. I need steps so I can study how to break these down. Thank you so much.
The sum of two numbers is 36. The first number is
1/5 of the second number.
What are the numbers? ___
What is the smaller of the two numbers? ___
What is the larger number of the two numbers? ___
Click here to see answer by josgarithmetic(39614) |
Question 1125415: I would be grateful for help breaking this down. Thank you.
One day a store sold 33 sweatshirts. White ones cost $9.95 and yellow ones cost $13.50. In all, $374.50 worth of sweatshirts were sold. How many of each color were sold?
The store sold
___ white sweatshirts.
Click here to see answer by MathLover1(20849)  |
Question 1125415: I would be grateful for help breaking this down. Thank you.
One day a store sold 33 sweatshirts. White ones cost $9.95 and yellow ones cost $13.50. In all, $374.50 worth of sweatshirts were sold. How many of each color were sold?
The store sold
___ white sweatshirts.
Click here to see answer by MathTherapy(10549)  |
Question 1125423: Can someone please help me figure this out? Thank you.
Alvin paddled for 5 hours with a 3-km/h current to reach a campsite. The return trip against the same current took 8 hours. Find the speed of the boat in still water.
The speed of the boat in still water was _____km/h.
Click here to see answer by ikleyn(52756) |
Question 1125424: I am confused by this, can someone please help?
A student makes a $10.50 purchase at the bookstore with a $20 bill. The store has no bills and gives the change in quarters and fifty-cent pieces. There are 30 coins in all. How many of each kind are there?
There are
____quarters in the change.
____fifty cent pieces in the change.
Click here to see answer by josgarithmetic(39614) |
Question 1125421: I would be so happy if someone can help me work this out please.
Ina Crespo rowed 12 miles down the Habashabee River in 1.5 hours, but the return trip took her 4 hours. Find the rate Ina rows in still water and the rate of the current. Let x represent the rate Ina can row in still water and let y represent the rate of the current.
d=r•t
Downstream x+y
Upstream x−y
Ina can row ____mph in still water.
Click here to see answer by ikleyn(52756) |
Question 1125420: Can someone please help me work this out?
There were 409 tickets purchased for a major league baseball game. The
lower box tickets cost $12.50 and the upper box tickets cost $10.00. The total amount of money spent was $4575.00. How many of each kind of ticket were purchased?
How many lower box tickets were purchased?
How many upper box tickets were purchased?
Click here to see answer by josgarithmetic(39614) |
Question 1125420: Can someone please help me work this out?
There were 409 tickets purchased for a major league baseball game. The
lower box tickets cost $12.50 and the upper box tickets cost $10.00. The total amount of money spent was $4575.00. How many of each kind of ticket were purchased?
How many lower box tickets were purchased?
How many upper box tickets were purchased?
Click here to see answer by MathTherapy(10549) |
Question 1125422: Please help me set this up and solve. Thank you so much.
Matt and Anna Killian are frequent fliers on Fast-n-Go Airlines. They often fly between two cities that are a distance of 1575 miles apart. On one particular trip, they flew into the wind and the trip took 4.5 hours. The return trip with the wind behind them, only took about 3.5 hours. Find the speed of the wind and the speed of the plane in still air.
The wind speed is _____mph.
The plane speed is_____mph.
Click here to see answer by ikleyn(52756) |
Question 1125413: I need help breaking this down, please, and thank you.
In a certain year, the average e-mail user sent or received 162 e-mails each day. The number of e-mails received was 6 more than thrice the number sent. How many were sent and how many were received each day?
For each day,
___e-mails were sent and
___e-mails were received.
Click here to see answer by josgarithmetic(39614) |
Question 1125413: I need help breaking this down, please, and thank you.
In a certain year, the average e-mail user sent or received 162 e-mails each day. The number of e-mails received was 6 more than thrice the number sent. How many were sent and how many were received each day?
For each day,
___e-mails were sent and
___e-mails were received.
Click here to see answer by ikleyn(52756) |
Question 1125413: I need help breaking this down, please, and thank you.
In a certain year, the average e-mail user sent or received 162 e-mails each day. The number of e-mails received was 6 more than thrice the number sent. How many were sent and how many were received each day?
For each day,
___e-mails were sent and
___e-mails were received.
Click here to see answer by greenestamps(13195)  |
Question 1125413: I need help breaking this down, please, and thank you.
In a certain year, the average e-mail user sent or received 162 e-mails each day. The number of e-mails received was 6 more than thrice the number sent. How many were sent and how many were received each day?
For each day,
___e-mails were sent and
___e-mails were received.
Click here to see answer by MathTherapy(10549) |
Question 1125414: Any help with this would be greatly appreciated.
A basketball player scored 16 times during one game. She scored a total of
18 points, two for each two-point shot and one for each free throw. How many two-point shots did she make? How many free throws?
She made
___two-point shots.
Click here to see answer by josgarithmetic(39614) |
Question 1125414: Any help with this would be greatly appreciated.
A basketball player scored 16 times during one game. She scored a total of
18 points, two for each two-point shot and one for each free throw. How many two-point shots did she make? How many free throws?
She made
___two-point shots.
Click here to see answer by greenestamps(13195) |
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