06/27/15

What is the probability of rolling a 4 on a ten sided die 5 times in a row?
What is the probability of rolling a 4 on a ten sided die 5 times in a row? I don't think the answer is as simple as 1 in 10,000 which would be a ten percent chance 5 times. 
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06/24/15

Math Question
Write the quadratic equation whose roots are 4 and -5, and whose leading coefficient is 5. (Use the letter x to represent the variable.)
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06/24/15

distance-rate-time,interest,average,cost
Two planes, which are 2340 miles apart, fly toward each other. Their speeds differ by 35 mph. If they pass each other in 4 hours, what is the speed of each?
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06/24/15

simply and show work
I'm coming up with random answers for these questions. Please help.   a) (x/4-4/x)/(1-4/x)       b) (x-2-y-2)/x-1 
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06/24/15

Find the value of k such that the system of linear equations is inconsistent.
Find the value of k such that the system of linear equations is inconsistent.6x + 2y = 8−9x + ky = −11   k=?
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06/24/15

Find four consecutive integers such that the sum of the second and fourth is 132
Pls help I can't figure this out and neither can my parents 
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06/23/15

What are the reasons for this proof:
complete the two column proof by providing the best possible reasons  Given: Segment CX is congruent to segment BX, triangle ABC is an equilateral triangle  Prove: triangle AXC is congruent to... more
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06/23/15

Show that this equation is true
It is given that p is a prime number and p > 5. a) Show that p= 6n + 1 or p = 6n + 5 for some positive integer n. b) Hence, show that p2 + 2 is divisible by 3.   How can I 'show that'? With... more
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06/22/15

Algebra 2 problem
The system of equations:   2x+2y-z=13 4x-y=7 7y-4y=11   represents the number of red, green, and blue cubes you will need to help your younger sister practice her addition and subtraction.... more
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06/22/15

plot x+2y=-6 on a graph
Graph the line on a X and Y graph
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06/22/15

I dont understand this problem or even how to make it into an equation
Two-wheel mopeds and three-wheel mopeds are made by using the same wheels and other materials. There are 61 wheels and enough materials to make 24 mopeds. If all the supplies are used how many of... more
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06/22/15

LCM and HCF
Mrs Lim has 2 daughters, Helen and Melissa. The Highest Common Factor and Lowest Common Multiple is 3 and 168 respectively. If Helen is 3 years older than her sister, how old is Helen? thanks in... more
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06/21/15

How many gallons of skimmed milk, containing no butterfat, must be mixed with this milk to produce a milk containing 5% butter fat?
A dairy producer has 125 gallons of milk with 6% butterfat. (this is the first part of the question)
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06/21/15

A helicopter hovers 60 m above the ocean's surface. A submarine is resting 30 m underwater. Directly, below the helicopter. What is the difference?
need help on these one! someone would be nice to help me. Thank you so much!! (: 
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06/21/15

maria runs through the countryside at a rate of 10mph.
she returns along the same route at 6 mph. if the total trip took 1 hour and 36 minutes, how far did she run total
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06/19/15

probability help required please..
seven digit number  from the digits   1,2,3,4,5,6,7,8,9  are written in a random  order .The probability that this seven digit number is divisible by 9 is?   1/9 1/3 1/5 2/9
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06/17/15

Find two numbers whose sum is 55 and whose product is 684
Need help setting up the equation it self.
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06/16/15

The total bill excluding tax,is $22. If tax on the meal is 6% and if a 20% tip is left on the $22 total bill,then the total amount paid for the meal is?
Came up with two answers not surewhich one is right.
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06/16/15

jerry has a total of 23 marbles. The marbles are either blue or green. He has three more blue marbles than green marbles. How many marbles does he have?
jerry has a total of 23 marbles.  The marbles are either blue or green.  He has three more blue marbles than green marbles.  How many marbles does he have?
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06/16/15

Math word problem Help!
Trent and Dave drove 2420 km from Vancouver to Northern California. Trent drove 6 hours and Dave drove 12 hours. If Dave drove 5km/h faster than Trent at which speed did Dave drive at (to the... more
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06/16/15

a car is moving with average speed of 20km per hour while coming the average speed is 30km per hour find out the average speed of the entire journey
average velocity is equal to total distance travelled by total time taken
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06/15/15

Determine the value of A so that the line whose equation is Ax+y-2=0 is perpendicular to the line containing the point (1,-3) and (-2,4).
Determine the value of A so that the line whose equation is Ax+y-2=0 is perpendicular to the line containing the point (1,-3) and (-2,4).
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06/15/15

Find how many quarts 6% butterfat milk and 3% butterfat milk should be mixed to yield 30 quarts of 4% butterfat milk
I merely need to know the x and y values of the equation
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06/14/15

Precal final review solve
2 equations That are giving me difficulty.   Solve a)  (2x+3)/(x+5)  +  (1)/(2)   = (7)/(2x+10)         b)(x2+4x+3)/(x2+5x+6)     +   (x2-5x+6)/(x2-3x+2)   =  (x2+1x-6)/(x2+1x-2)
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06/13/15

Word problem?
I can't figure out this one please help!   The Miller family received 19 pieces of mail on February 10. The mail consisted of bills, magazines, letters, and ads. How many bills did they receive... more
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