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Tutors Answer Your Questions about Evaluation Word Problems (FREE)
Question 89168: Jeff starts driving at 55 mph from the same point that Lauren starts driving from 70 mph. They drive in opp. Directions and Lauren has a half hour head start. How long will they be able to talk on their cell phone and have a 440 mile range.
Click here to see answer by checkley75(3666)   |
Question 91488: Solving a word promblem using a quadratic equation with rational roots
The length of a rectangle is 1 yd less than three times ite width and the area of the rectangle is 24yd^2. Find the diminsions.
Click here to see answer by ptaylor(1578)  |
Question 91544: Find the area of a triangle with an altitude of 13meters and a base of 25meters. What is the cost to construct such a triangle out of sheet metal that costs $4.50 per square meter?
Click here to see answer by uma(370) |
Question 92297: Tom and David have 480 marbles between them. Tom arranges them in columns with 6 in each column, and David arranges them with 9 in each column. The total number of columns is 72. Express the above information in the form of an algebraic equation. What is the number of columns of the second boy? Then columns of second boy is ? Number of marbles of the first boy having 6 in each ? Number of marbles of the second boy having 9 in each =?
Total number of marbles?
Algebraic expression is: ?
Click here to see answer by scott8148(3382)  |
Question 94460: Sally bought 3 choclate bars and a pack of gum and paid $1.75. Jake bought 2 chocolate bars and 4 packs of gum and paid $2.00. Write a system of algebraic equations using c=chocolate bar, and g=gum to represent the given information. Solve using the adding method or substitution to fing the cost of a chocolate bar and the cost of a pack of gum.
Click here to see answer by stanbon(26268) |
Question 94632: A wire of length 50 feet is attached to the ground and top of an antenna,The height of the antenna is 10 feet larger than the distance from the base of the antenna to the point where the wire is attached to the ground.What is the height of the antenna?
Click here to see answer by stanbon(26268) |
Question 95268: A wholesaler is offering two different package deals of roses and carnations to florists. One package contains 20 dozen roses and 34 dozen carnations for $504.00. The other package contains 15 dozen roses and 17 dozen carnation for
$327.00. This information can be represents by the system of equations below,where r represents the cost of one dozen roses and c represents the cost of one dozen carnations.
20r+34c=504
15r+17c=327
solve the system of equations to find the cost,in dollar,of a dozen roses
Click here to see answer by ionesco(12) |
Question 95727: writing an exponential equation
the function v(t)120000(1.04^t) gives the value of a home in dollars in the year 1980+t. write an EQUATION that can be used to determine the year in which the value of the home reached $190,000? use ^ to denote an exponent. do not solve the equation.
Click here to see answer by stanbon(26268) |
Question 95726: evaluting a function
the function V(t)=89500(1.054^t) gives the value of a home in dollars in the year 1990+t. what was the value of the home in 1994? Round your answer to the nearest whole dollar amount and give units
Click here to see answer by stanbon(26268) |
Question 95917: On Nov. 19, 1863, Abe Lincoln delivered the famous Gettysburg Address. The speech began "Four score and seven years ago,..."
I am supposed to:
1.Write an expression to represent four score and seven.
2.- Evaluate the expression. Name the property used in each step.
I don't get this. Please help. Thanks!!
Click here to see answer by bucky(1732) |
Question 98056: How many pounds of coffee beans selling for $2.00 per pound shoulod be mixed with 6 pounds of coffee beans selling for $1.40 per poound to obtain a mixture selling for $1.64 per pound? Thank you very much for your help.
Click here to see answer by fryal(1) |
Question 98857: A seamstress purchases 100 yds. of fabric. She can use it to make 20 skirts and 8 dresses. If she makes 14 dresses will she have enough fabric to make 10 skirts. How many yards of fabric are needed to make each?
Click here to see answer by stanbon(26268) |
Question 98898: Objectives:
Describe given mathematical procedures clearly and correctly.
Communicate mathematical reasoning in written form.
Communicate mathematical equations in written form.
Communicate the results of a calculation in written form.
Given:
By using a ruler, you determine that the distance between two cities on a map is 3.4 inches. According to the map’s scale, 2 inches represents 75 miles. What is the actual distance between the two cities?
Task:
Write an essay (suggested length of 1 page) in which you communicate mathematical information in written form. Include the following:
A. Briefly explain the general procedure used to identify and set up a proportion problem.
B. Write a proportion that correctly represents the problem in the Given.
1. Solve the proportion, showing all relevant work.
C. Explain the reasoning behind the equation you set up (e.g., how did you determine the two ratios in the problem, and how do you know if they are equivalent?).
D. Explain each step used to solve the equation. Your explanation should include the original equation, the equation at each step, and the final equation with the unknown equal to some number. (Use complete sentences, not mathematical symbols, to explain the steps.)
E. Briefly explain (in 1–2 sentences) what the answer means in terms of the original problem.
Click here to see answer by tutorcecilia(2042) |
Question 99023: Hello,
Please help me with this story problem...I am terrible at them. I got the answer 1.5 ft. but want to check.
A rug is to fit in a room so that a border of even width is left on all four sides. If the room is 12 ft by 15ft and the area of the rug is 108 ft, how wide will the border be? Thanks..>Tammy
Click here to see answer by edjones(3292)  |
Question 99107: There are 850 Douglas fir and ponderosa pine trees in a section of forest bought by Sawz Logging Co. The company paid an average of $300 for each Douglas fir and $225 for each ponderosa pine. If the company paid $217,500 for the trees, how many of each kind did the company buy?
How many Douglas firs?
How many Ponderosa Pine?
Click here to see answer by checkley71(8405) |
Question 100945: Temperature The expression is 9/5C + 32
Where C stands for temperature in degrees Celsius
is used to convert to farenheit. 9/5(20)
If the Temperature is 20 degress Celsius Find theTemp in degrees farenheit.
Click here to see answer by elima(1433) |
Question 101041: Peter takes 15 minutes longer to mow the lawn by himself than charles dows. Together they mow the lawn in 18 minutes. How long does it take for charles to mow the lawn by himselves?
I am having trouble figruing out the equasion of this problem.
I DO KNOW THIS:
p= c+15
c+p=18
p=c+15
c+p=18
Click here to see answer by stanbon(26268) |
Question 103604: at sammys sub the cost of a regular sub sandwich is $5. sammyshas sunday sub special:$2.off every order. write an expressionthatrepresents the cost of an order of nregular sub sandwiches on sunday.
Click here to see answer by elima(1433) |
Question 104224: Angela's average for six math tests is 86. On her first tests she had scores of 80, 88, 82, 93. On her last test, she scored 7 points lower than she did on her fifth test. What scores did Angela receive on her fifth and sixth tests?
Click here to see answer by Earlsdon(4900) |
Question 104836: If one-half the smaller number of two numbers is increased by one-third the larger number, the result is 2. If one-third the smaller number increased by one-ninth the larger number, the result is 1. Find the numbers.
in worksheet!!
Click here to see answer by edjones(3292) |
Question 106205: One machine takes 15 minutes to do a certain job. Another machine takes 20 minutes to do the same job. Find the time it would take both machines, working together, to do the same job. Be sure to define your variable, write an equation, and show how you solved the equation. Please help.
Click here to see answer by bucky(1732) |
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