Tutors Answer Your Questions about Equations (FREE)
Question 943615: Determine the amount of each of the two solutions that must be mixed to make 250 mL of a 40% acid solution. Round to the nearest milliliter.
1.) 25% acid, 80% acid
2.) 30% acid, 60% acid
3.) 15% acid, 75% acid
4.) 10% acid, 45% acid
Click here to see answer by TimothyLamb(4379)   |
Question 943659: Wei received $55.35 simple interest on the $1230 in her credit union account. If the interest amount varied directly with the amount deposited how much would Wei receive for the same amount of time if she had $2000 in the account?
Click here to see answer by TimothyLamb(4379) |
Question 943678: Anne solved 5(2x)- 3 = 20x + 15 for x by first distributing 5 on the left side of the equation. She got the answer x = -3. However, when she substituted -3 into the original situation for x, she saw that her answer was wrong. What did Anne do wrong, and what is the correct way?
Click here to see answer by josgarithmetic(39617) |
Question 943678: Anne solved 5(2x)- 3 = 20x + 15 for x by first distributing 5 on the left side of the equation. She got the answer x = -3. However, when she substituted -3 into the original situation for x, she saw that her answer was wrong. What did Anne do wrong, and what is the correct way?
Click here to see answer by MathTherapy(10552)  |
Question 943725: I'm really sorry to bother you like this however i'm really having trouble with this one question in algebra
xsquared -3xy+2ysquared
I know the answer is forty, however I don't know how to come to that conclusion (how to do the working out) I know this is probably pretty basic for you but i'd really appreciate help, also I hope this is isn't asking for too much however I was hoping you could outline how often I should ask questions ( to you people) since I don't want to 'dump my whole homework in one question.' thank you for reading this and thank you in advance!
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 943827: Jim and Susan mow lawns. The ratio that compares the amount of time each works is 8:5. They were paid $65 for their work. How much did Susan earn if she worked more than Jim?
a. $25
b. $45
c. $30
d. $40
Click here to see answer by Theo(13342)  |
Question 943843: AIRSPEED It takes a private airplane 8.75 hours to make the
2,100-mile flight from Atlanta to Los Angeles and 5 hours to make the
return trip. Assuming that the wind blows at a constant rate from Los
Angeles to Atlanta, find the airspeed of the plane and the wind rate.
Click here to see answer by stanbon(75887) |
Question 943843: AIRSPEED It takes a private airplane 8.75 hours to make the
2,100-mile flight from Atlanta to Los Angeles and 5 hours to make the
return trip. Assuming that the wind blows at a constant rate from Los
Angeles to Atlanta, find the airspeed of the plane and the wind rate.
Click here to see answer by Alan3354(69443)  |
Question 943829: Students raised $800 for a ski trip. The cost of the bus for the trip will be $350. The bus holds 40 students. The cost for each students lift ticket is $25. If no additional money is collected, what is the maximum number of students who can go on the trip?
a) 23 students
b) 20 students
c) 18 students
d) 15 students
Click here to see answer by MathLover1(20849)  |
Question 943828: Students raised $800 for a ski trip. The cost of the bus for the trip will be $350. The bus holds 40 students. The cost for each students lift ticket is $25. If 40 students wish to attend, how much more money must be collected to pay for the entire trip?
a) $550
b) $800
c) $1,000
d) $1,350
Click here to see answer by rfer(16322) |
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