02/05/16

Algebra Word Problem

It took 3 hours for a plane, flying against the wind, to travel 780 miles. Flying with the wind on the return trip, it only took 2 hours. What would the speed of the plane have been in still air(no... more

could someone help me with this math problem?

2x-3(4x+5)=-7x+2(3x+4)   im so confused

02/04/16

math-percents

The manufacturer of an oven says that the temperatures displayed while cooking are within a 5% error.  Rachel is using the oven to bake a cake that must be cooked at a temperature below 325 degrees... more

02/03/16

how many boards did the carpenter start with?

 A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards, the carpenter notices that he has enough pieces left over to make up the same length as 4 of... more

could someone help me with this problem?

Kelly has a collection of nickels, dimes and quarters with a total value of $7.00 There are 7 more dimes than nickels and 3 times more quarters than nickels, how many of each coin does she... more

02/01/16

math problem

Jack and jill went up the hill. Jack fetched 2 pails of water and jill fetched 8. Jack fetched 24 fewer pails than jill over the week. so how many pails did jack fetch

01/30/16

Hi, can someone help me on my Homework? "How tall is the flagpole?"

Q.Darnell is curious about the height of a flagpole that stands in front of his school Darnell,who is 6 ft Tall,casts a shadow that he paces off at 9ft. He walks the length of the shadow  of... more

01/29/16

70 ml of a 1% solution and wants to add 4% solution to obtain 2% solution. How much 4% should be added?

A pharmacist wishes to mix a solution that is 2% Minoxidil. She has on hand 70 ml of a 1% solution and wishes to add some 4% solution to obtain the desired 2% solution. How much 4% solution should... more

01/29/16

A severe weather siren in a local city can be heard within a radius of 1.3 miles. If the mayor of the city wants a new siren that can cover double the area of t

 A severe weather siren in a local city can be heard within a radius of 1.3 miles. If the mayor of the city wants a new siren that can cover double the area of the old siren, what should the radius... more

01/25/16

How do you solve tan(x)sec(x)=tan (x)?

This is a trigonometry identity equation. 

01/25/16

word problem in the description box

 A sporting goods store sells right-handed and left-handed baseball gloves. In one month, 12 gloves were sold for a total revenue of $561.  Right-handed gloves cost $45 in left-handed gloves cost... more

01/22/16

twice a number plus 4 is -54. Find the number

2x + 4 = -54  

01/21/16

Find a formula for the line parallel to the line y=110-8x and containing the point (7,56)

Can someone show me step by step on how to solve this problem?

Distance Word Problem

Professors Roberts and Jones, who live 676 miles apart, are exchanging houses and jobs for the summer. they start out their new locations at the exact same time, and they meet after 6.5 hours of... more

if two U.S. pennies have the same weight as one U.S, quarter, and 4 pounds of quarters are worth $100, than how much is 4 pennies worth

word problem help with the steps included to solve the problem, along with the answer   the problem is   if two U.S. pennies have the same weight as one U.S. quarter and 4 pounds of quarters... more

The supplement of and angle measure 10 degrees more than twice its complement. What is the angle measure, the complement, and its supplement?

The supplement of and angle measure 10 degrees more than twice its complement. Find the measure of the angle, its supplement, and its complement.

01/13/16

Percentage and math question.

I have a bill that costs 839.21, i pay 322.70, my friend pays 316.40, and her friend pays 200.11, what is the percentages that each of us pay for that bill? Also a generous person has decided to... more

01/13/16

Jennifer has 6 times as many stickers as Kate. They have 3738 stickers altogether. How many stickers does Jennifer have?

Jennifer has 6 times as many stickers as Kate. They have 3738 stickers altogether. How many stickers does Jennifer have?

01/07/16

I need help figuring out this equation using the substitution method. I would appreciate a step-by-step procedure to base off of.

2x + 3y = 7 and x - 2y = -7   I need to solve for YI need help figuring out this equation using the substitution method. I would appreciate a step-by-step procedure to base off of

0.3x-y=0 y=2+0.25x solving by substitution? no clue

im not really sure how to do this question. please help me with this?                                                                                                            - thanks again 

01/07/16

how do i find the volume of 0.5, 1.5, 0.4

what is the formula in finding volume with decimals

how do you set up the problem?

Lilly wants to keep the cost per person of her party under $15. Party Palace charges a flat fee of $250 for the party. Letting g represent the number of guests,including herself, how many can she... more

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