03/08/16

7-10 *System of equations* (questions below)
7) Jimmy spent $380 on books. Math books cost $60 and science books cost $50. If he bought a total of 7, then how many of each kind did he buy?   8) A farmhouse shelters 13 animals. Some are... more
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03/08/16

Simplify the equation
5x/x^2-9 + 2/x+4
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03/08/16

What will the maximize their profit? What will be their maximum income?
A bus company transports 500 people a day between Shaffer Road and Highland Street. The one way fare is $0.50. The owners estimate that for each $0.10 proce increas, 50 passengers will be lost. 
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03/07/16

Is the ordered pair 0,-12 a solution to y=x+12
Mathmatical equations
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03/07/16

multiple step money problem
a community center sells a total of 296 tickets for a basketball game. an adult ticket costs $3. a student ticket costs $1. the sponsors collect $478 in ticket sales. find the number of each type... more
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03/06/16

Math Problem
Given that f (x) =  x - 2                and    g (x) =  4x      find the function  (g º  f ) (x)  and the state its domain                            ------                                  ... more
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03/06/16

Geometry world problem Help!
When using the formula S=2πr(r+h) , Shelly claims that this is the formula for the volume since the r, r, and h suggest three dimensions. How should you respond?
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03/06/16

Each of two cars, whose average rates are in the ratio of 4:5, travels the distance of 160 miles. If the fast car travels half an hour less than the slow car
find the average rate of each car.The average rate of the slow car is____  mph, and the average rate of the fast car is____  mph.
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03/06/16

The mean Algebra 2 test score is 81.5, with a standard deviation of 5.1. Assuming a normally distributed curve, what percent of students scored between 81.5 and
I really need some help
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03/05/16

Algebra 2 word problem
In a 200 mile bike ride, Duva realized that if she could average 1 mile per hour faster than she did on her last 200 mile ride, she would finish 1 hour sooner.  How long did she spend on her last... more
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03/05/16

There are 30 50p coins in devs bag how many 20p coins in holly's bag they are the same amount
this question will help me improve and help me with my maths and that is why I am on this web 
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03/05/16

Math Probability question.
Choose 6 faces of a dice that would make a sum of 21.  For example 1+2+3+4+5+6=21. The dice will be rolled 36 times.  What 6 faces would you choose to guarantee victory against all other... more
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03/04/16

loan at 18% compounded quarterly, for 25000. There is a loan originally a fee of 2% of the principle, and there is also a credit-report application fee of 150,
What is the A,p,t,r,m,I and n.  For the theoretical loan that produces the aer without fees..  Fine the a,p,t,r,m,I and n.  For the theoretical loan that produces the aer with fees. Find the... more
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03/03/16

ALEXA STARTED A RACE WITH A 50 METER HEAD START. She ran at a rate of 6.25 meters per second. After how many seconds was Alexa 200 meters past the starting line
can you please answer this question
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03/03/16

Can anyone help me
Find p(a and b) if p(a) = 0.8 p(a|b)=0.3 and p(b|a) =0.1 
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03/02/16

Verify Cosx/1+sinx + 1+sinx/Cosx
Verify Cosx/1+sinx + 1+sinx/Cosx  
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03/02/16

The scores on an exam for a class of 50 students were approximately normally distributed with a mean of 40 and a standard deviation of 5
a. Approximately how many of the students scored above 45? b. Approximately how many of the students scored above 50? c. Approximately how many of the students scored below 35? d. Approximately... more
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03/02/16

JASON DRIVES 50 MI TO A TRAIN and then continues his trip with a 210 mi train ride. the car travels 20 mph slower than the train. if total travel time is 4 hr,
I'd appreciate if work is shown because that'll help!
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03/01/16

Convert r=?+cos(3?) to rectangular coordinates
Convert r=θ+cos(3θ) from polar coordinates to rectangular coordinates.
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03/01/16

I really need help on these two! find the "1-variable statistics" for this data set: 14, 18, 26, 12, 17, 22, 19, 15, 25, 22, 19, 11.
1-variable statistics you generated, you'll need to first round the mean and standard deviation to the tenths place to answer this question. What are the upper and lower values for 1 standard... more
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03/01/16

College Algebra Word Problem
Apiece of cardboard is 2.8 times as long as it is wide. It is to be mad into a box with an open top by cutting 2-inch squares from each corner and folding up the sides. Let X represent the width(in... more
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03/01/16

Two cyclists, 90 miles apart, start riding toward each other at the same time. One twice as fast as the other.if they meet 2 hours later,
at what average speed is each cyclist traveling? (d=s*t)
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03/01/16

Please help!!
Graph the solution set for the system of linear inequalities.   x-y≤ 3   x+3y≤3   x≥-2
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02/29/16

Quick question: What is the upper and lower values for 1 standard deviation around the mean 14, 18, 26, 12, 17, 22, 19, 15, 25, 22, 19, 11
Please help me get the upper and lower values for 1 standard deviation (S.D.) around the mean for the numbers 14, 18, 26, 12, 17, 22, 19, 15, 25, 22, 19, 11. Then give the upper and lower values... more
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02/29/16

Maria is adding porch 18ft long.the drawing by the carpenter the length is shown as 11inches.the drawing shows the width is 8 inches
how many feet wide will the porch be? round to nearest foot
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