02/15/17

simplifying radicals
√5x4/√2x2y3    Simplify the expression. Rationalize all denominators.  
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02/15/17

Help Please
The cost of manufacturing a semi-circular window is the cost of the glass pane together with the cost of the framing material. When ordering this window, a customer specifies the length of the base... more
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02/15/17

She can make 1 over 2, of a pizza in 1 over 24, of an hour. If she continues to work at the same rate, how many pizzas can Gwen make in an hour?
Gwen works at a pizzeria. She can make 1 over 2, of a pizza in 1 over 24, of an hour. If she continues to work at the same rate, how many pizzas can Gwen make in an hour?
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02/15/17

Determine the date (month, day, and year) that all three clocks will show the same time at noon.
Here is my problem: "As an experiment, Santa Claus programmed three of his grandfather clocks to keep time as follows: At noon on July 1, 2007, all three clocks showed the correct time.... more
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02/14/17

the density of gold is 19.3 grams per cubic centimeter. what is the mass of a cube of gold that measures 1.2 cm on a side?
what is the equation
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02/14/17

Word problem
The ratio of withs to withouts was 3 to 11. If 5600 were huddled in the forest, how many were withs? 
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02/14/17

One number is 7 less than another number. The sum of the numbers is 63. Find the numbers.
Use 2 variables for the numbers. 
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02/14/17

Math question
A caterer is planning a wedding banquet. He expects each adult will eat 1/3 pound of chicken and each child will eat 1/2 of an adult portion. How much chicken should he order for 82 adults and 25... more
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02/14/17

log questionsssssssss
logbase2(x)+logbase2(2x)+logbase2(3x)+logbase2(36)=6
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02/14/17

60 pounds of a radioactive substance were left in your cousins garage by his neighbor as a friendly prank. After 3 years, only 48 pounds of the same substance
60 pounds of a radioactive substance were left in your cousins garage by his neighbor as a friendly prank. After 3 years, only 48 pounds of the same substance were left. What is the half-life to... more
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02/14/17

Nine less than seven times a number is the same number increased by three
Algerbra is hard for me. To translate the problem I don't understand how to write it out and solve it
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02/14/17

-2(2x+7)= simplify your answer
Use the distributive property to write the expression without parentheses.
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02/14/17

Nicole has 60 marbles and one third of them are green. How many are green?
I need to know how many are green of the 60 marbles. There are 1/3 green marbles.
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02/14/17

bob pays $25 per month for cable. Cable increases to $35 per month. Bob pays $340 for a year of cable. How many months did bob pay $25 for cable?
bob pays $25 per month for cable. Cable increases to $35 per month. Bob pays $340 for a year of cable. How many months did bob pay $25 for cable?
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02/14/17

a walkway with uniform width has area 126m^2 and surrounds a rose garden that is 9m by 15m wide. find the width of the walkway
i need help on this problem with the steps
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02/14/17

Simplify the following expression -8(-3)/-9=
Type an interger or a simplified fraction  
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02/14/17

Finding velocity after a collision
On a very wet and slippery rugby field a 120 kg halfback tackles a 90 kg second rower. Prior to the collision the halfback is slipping with a velocity of 5.6m/s south and the second rower is... more
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02/14/17

Ten years from now, A will be twice as old as B. Five years ago, A was three times as old as B. What are the present ages of A and B?
These are the equations I come up with - but they are not correct.  I need help fixing them:   A + 10 = 2B A - 5 = 3B
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02/13/17

ladder resting on a wall
a ladder is resting against a wall. The top of the ladder touches the wall at a height of 12 feet. Find the length of the ladder if the length is 4 feet more than its distance from the wall.
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02/13/17

The 2 trains in the des. are traveling adjacent to each other, when are they in the same location?
At 7:30 AM, an express train traveling 60 miles an hour leaves Santa Fe bound for Phoenix, 520 miles away. At the same time, a local train traveling 30 miles an hour and carrying 40 passengers... more
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02/13/17

wave speed question, please help :)
On a stringed instrument, the n=3 harmonic gives a frequency of 419 Hz. The length of the string is 0.48 meters. Find the wave-speed on this string. in terms of meters/second. to a precision of... more
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02/13/17

speed of sound question, please help :)
A musical instrument has an open/closed air tube which is 32 cm long. If the speed of sound in air is 350 m/s then find the fundamental frequency for this instrument. Give your answer ...in terms... more
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02/13/17

solve the equations
-2x+5y=-1 3x+2y=11
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02/13/17

John and 2 friends are going out for pizza for lunch. They split one pizza and 3 large drinks. The pizza cost $14.00. After using a $7.00 gift certificate
 they spend a total of $12.10. Write an equation to model this situation, and find the cost of one large drink.
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02/12/17

A 50g sample of radioactive substance is said to have a half life of 18days, How many grams are remaining after each day? ( totally of days)
what would the exponential regression question be that models the number of grams remaining? y, after x number of days 
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