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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03/03/16

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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03/02/16

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

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

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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02/29/16

an angel measures 42° more than twice the measure of its complement, what is the measure of its complement?
an angel measures 42° more than twice the measure of its complement, what is the measure of its complement?
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02/29/16

Simplify the equation
2x^2-6x/x^2+18x+81 * 9x+81/x^2-9
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02/29/16

Simplify the equation
2y^2+8y-24/2y^2-8y+8
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02/29/16

Simplify the equation
Xy^3-9xy/12xy^2+12xy-144x
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02/29/16

Given the following endpoints on a number line (A & B) and midpoint (M), solve for x and find the endpoints, A and B. M = -2, A = x, and B = 4x-2
please help me now
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02/28/16

Kevin rides 11.5 mph. Write an equation for Lauren who rides twice as fast as Kevin. Use y to represent the number of miles Lauren travels in x hours
Write an equation. 
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02/28/16

4·2³ /16 - v13²–4·21·2/4
  4⋅2³     √13²–4⋅21⋅2  16              4         (13²-4⋅21⋅2) is all in the square root bracket
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02/27/16

Radical Expressions
A kayaker spends a morning paddling on a river. She travels 9 miles upstream and 9 miles downstream in a total of 6 hours. In still water, she can travel at an average speed of 4 miles per hour.... more
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02/27/16

Maths Question
A pile of newspapers in Ms. McGarth's art class was 17 3/4 inches high.  Each consecutive week, for the next 5 weeks, the height of the pile of newspapers increased by 8 7/12 inches.  What was the... more
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02/26/16

could someone help me with this math problem?
Factor completely a4 4-a2-6
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02/26/16

9x^2+y^2+18x-2y+1=0
Circles, ellipses, and hyperbolas identify the center. Write equation in standard form.
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02/25/16

What is the 60 and 40th percentile?
1 1 1 1 1 1 2 3 5 8 13 21 34 55 89 89 89 89 89 89
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02/25/16

a chemist has two solutions 1 20% acid and the other 60% acid how much of each solution to make 120 milliliters that is 28% acid
I need help with this math problem :-)
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02/24/16

x = -8+square root 8 to the second power - 4*2*-5 below is 2 * 2
This is a math question I do not understand.
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