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# The formula d=15t describes the distance d in miles that Peter can ride his bike in t hours. How far does he ride in 3 hours?

I need help as I don't understand how to begin to figure this problem out.

# Optimization Problems

Two parabolas y=16-3x2 and y=x2-9 are drawn. A rectangle is contructed with sides parallel to the coordinate axes with the two upper vertices on the graph of y=16-3x2 and the two lower vertices...

# Optimization Problems

6 segments of a window frame are to be constructed from a piece of window framing material 6 m in length. A carpenter wants to build a frame for a rural gothic style window, where the triangle ABC...

# Optimization Problems

A piece of wire 200 cm is cut into two pieces: one a square and another a circle. Where should the cut be made if the sum of the two areas (square and circle) is to be a minimum.

# Solving fractions with word problems

three people who work full time are to work together on a project  but their total time on the project is to be equivalent to that of only one person working full time. If one of the people is...

# points (show work)

Consider the points (1,6) and (3,-2). (a.) State the midpoint of the line segment with the given endpoints. (b.) Find the distance between the points. Show some work. Give the exact answer...

# melinda has nickles and quarters in her bank. She has 8 fewer nickles than quarters. Her total is \$3.20 how many of each coin does she have

melinda has nickles and quarters in her bank. She has 8 fewer nickles than quarters. Her total is \$3.20 how many of each coin does she have

# If x mL with 30% acidic solution is mixed with y mL with 40% acidic solution, how much will z contain?

Tube with x mL with 30% solution, tube with y mL with 40% solution. Tube z has 30% solution, what is the mL?

# word problem

The minimum wage was \$5.15 in 1990 and \$7.25 in 2009 (Source: U.S. Dept. of Labor). Find the average rate of change in the minimum wage from 1990 to 2009. Express you answer using the units expressed...

# help help help help

Loudon County Phone Company charges a \$100 activation fee plus a monthly fee of \$0.05 per minute for every minute over 200 minutes each month. (So, there is no monthly charge for 0 – 200 minutes of...

# John makes \$42.00 for a full day of work; what will he make if he works 2/7 of a day?

John makes \$42.00 for a full day of work; what will he make if he works 2/7 of a day?

# Need to find out how much sugar goes in a cup of hot chocolate

Lynn is making hot chocolate for her holiday party. Her hot chocolate recipe consists of 4/5 cup of milk, 1/2 cup of cocoa powder, and 1/4 cup of sugar. If Lynn makes 62 cups of hot chocolate, how...

# seven times a number and 7 is equal to six times a number

i dont understand. halp. 7x time 7 = 6x

# The highest temp was 136 deg F in Africa. The lowest was -129 deg F in Antarctica. How many degrees difference is there between these temps.?

The highest temperature recorded was 136 deg.F in Africa. The lowest temperature was -129F in Antarctica. how many degrees difference is there between these temps.?

# problem solving question

Tony had an equal number of cranberry bars and walnut bars. He gave away 66 cranberry bars, he had 4 times as many walnut bars as cranberry bars left. How many bars did he have at first?

# Word Problem

Diego works at a toy store. His boss tells him to order 420 stuffed bears and toy cars. He must order 4 stuffed bears for every 3 toy cars. a) If he must order 9 large stuffed bears for...

# if an object falls 16 feet in 1 second, how far will it take an object to fall 64 feet?

the distance s that an object falls is directly proportional to the square of the time t of the fall. if an object falls 16 feet in 1 second, how far will it take an object to fall 64 feet?