Tutors Answer Your Questions about Equations (FREE)
Question 119379:
Science and medicine. A passenger train can travel 325 mi in the same time a
freight train takes to travel 200 mi. If the speed of the passenger train is 25 mi/h
faster than the speed of the freight train, find the speed of each.
Click here to see answer by checkley71(8403) |
Question 119429: In 1996, the salary of the governor of New York was about $10,000 more than two times the salary of the governor of Arkansas. The total of the two salaries was $190,000. Find the 1996 salaries of each state's governor.
_________
I tried doing this:
190,000=2a+10,000
180,000=2a
90,000=a
So saying that $90,000 is Arkansas's salary, that means that New York's is 190,000! But when I add that up, it doesn't make any sense anymore. I don't get this. Can you help me please?
Click here to see answer by stanbon(75887) |
Question 119699: Can you help me with this problem?
Find the value of the change in a purse that contains twice as many nickels as pennies, 3 more dimes than nickels, and as many quarters as dimes and nickels combined. Express your answer in terms of p, the number of pennies
Click here to see answer by josmiceli(19441)  |
Question 119592: Can you help me solve this equation?
The equation below is really a family of equations, because for each value of k we get a different equation with the unknown x. The letter k is called a parameter for this family. What value should we pick for k to make the given value of x a solution of the resulting equation? (If k can have any value, enter ANY.)
4x + 6k - 27 = kx - k + 1
If x = 5, k =
If x = -3, k =
If x = 7, k =
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 119839: Hi, can I have some help with this problem?
A 10-ft-long stem of bamboo is broken in such a way that its tip touches the ground t = 3 ft from the base of the stem What is the height of the break? (Hint: Use the Pythagorean Theorem.)
Click here to see answer by scott8148(6628)  |
Question 119837: Hi, can you help me with this problem?
Two cyclists, 87 mi apart, start riding towards each other at the same time. One cycles twice as fast as the other. If they meet 2 hr later, at what average speed is each cyclist traveling?
mi/hr (slower cyclist)
mi/hr (faster cyclist)
Click here to see answer by josmiceli(19441)  |
Question 119838: Hi, can you help me with this problem?
A storage bin for corn consists of a cylindrical section made of wire mesh, surmounted by a conical tin roof, as shown in the figure. The height of the roof is one-third the height of the entire structure. If the total volume of the structure is 2900 ft3 and its radius is 9 ft, what is its height? (Round the answer to one decimal place.)
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 119949: Can you help me with this problem?
Helen earns $7.60 an hour at her job, but if she works more than 35 hours a week she is paid 1 1/2 times her regular salary for the overtime hours worked. One week, her gross pay was $380.00. How many overtime hours did she work that week?
Click here to see answer by josmiceli(19441)  |
Question 119945: Can you help me with this equation?
If Ben invests $3400 at 5% interest per year, how much additional money must he invest at 6.5% annual interest to ensure that the interest he receives each year is 5.5% of the total amount invested?
Click here to see answer by checkley71(8403) |
Question 119784: Can you help me with this equation problem?
A health clinic uses a solution of bleach to sterilize petri dishes in which cultures are grown. The sterilization tank contains 100 gal of solution of 2% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 5% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?
Click here to see answer by ankor@dixie-net.com(22740)  |
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