Tutors Answer Your Questions about Equations (FREE)
Question 96438: Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C grade.
Click here to see answer by checkley71(8403)  |
Question 96477: 20. The hourly wage for an employee is 11$ per hour plus an additional $.80 for every unit produced during the hour. The employee earned a total of $23 during the first hour.How many units were produced in that hour?
Can someone help with this equation?
Click here to see answer by edjones(8007)  |
Question 96672: Could you please help me with this problem?
A 10-ft-long stem of bamboo is broken in such a way that its tip touches the ground 3 ft. from the base of the stem. What is the height of the break?
I tried using the pythagorean theorem and plug in different numbers, but I was not able to find a solution. Thanks!
Click here to see answer by 415451421245415(1) |
Question 96677: the formula for the time atraffic light remains yellow is t=1/8s +1, where t is the time in second and s is the speed limit in mph
a.solve the equation for s
b.what is the speed limit at a traffic ligth that remains yellow for 4.5 seconds
Click here to see answer by anjali_yamini(27) |
Question 96675: Could you please help me with this question?
A bank loaned out $12,000, part of it at a rate of 8% per year and the rest at the rate of 18% per year. If the intrest received totaled $1000, how much was loaned at 8%?
I will be honest that I had no idea where to start with this problem. Thanks!!
Click here to see answer by scott8148(6628)  |
Question 96674: Could you please help me with this question?
A stained glass window is being designed in the shape of a rectangle surmounted by a semicircle. The width of the window is to be 3 ft. but the height is yet to be determined. If 24 ft^2 of glass is to be used, find the height.
I know that you have to figure out the sides or something like that, but to be honest I really have no idea where to start at this problem. THanks!!
Click here to see answer by scott8148(6628) |
Question 96671: We have word problems that we have to take them and use an equation to figure out the answer. COuld you please help me with the following problem? A storage bin for corn consists of a cylindrical section made of wire mesh, surmounted by a conical tin roof. The height of the roof is one-third the entire height of the structure. If the total volume of the structure is 1400 pi ft^3 and its radius is 10 ft, what is its height?
I have tried to make an equation but im not sure if I am heading in the right direction. I took the formula for the cylinder and added it with the forlmula for the cone and set them equall to 1400 pi. Then I was going to solve for h, but i got stuck right there. Thanks!
Click here to see answer by scott8148(6628) |
Question 96770: How do I prove/disprove this?
If points A, B, and C lie on a coordinate line and points A and B
have coordinates 15 and 7 respectively, then which of the possible
coordinates for point C satisfy(ies) d(A, C) < d(B, C)?
Click here to see answer by stanbon(75887) |
Question 96866: DataNet plans to lay off 10% of its employees in its programming division and 15% of its employees in its IT division. If altogether 12% of the 3000 employees in these two divisions will be laid off, then how many employees are in each division?
So I get total laid off employees is 360 (12%*3000), but can't seem to figure out the number of employees in each division. Have tried several possibilites, none of which are correct. Would love help with the correct formulation of the equation, which I can probably solve.
Thank you.
Click here to see answer by stanbon(75887) |
Question 96880: I'm stumped. I tried multiplying by 3 to isolate the 2x, and tried combining fractions then dividing, but none of my attempts have been right. Can anyone help please?
Solve the inequality. Write the solution set in interval notation.
-2/3 >= 2x/3 - 3/4
Click here to see answer by stanbon(75887) |
Question 96880: I'm stumped. I tried multiplying by 3 to isolate the 2x, and tried combining fractions then dividing, but none of my attempts have been right. Can anyone help please?
Solve the inequality. Write the solution set in interval notation.
-2/3 >= 2x/3 - 3/4
Click here to see answer by coyote(32) |
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