Tutors Answer Your Questions about Human-and-algebraic-language (FREE)
Question 5463: At Jefferson High School there are 1200 students. Four percent of the students wear one ring. Of the other 96%, half wear two rings and half wear no rings. What percent of the students wear rings?
thanks for helping me!
Click here to see answer by CharStar(110)  |
Question 5494: Solution A is 8% acid and Solution B is 4% acid. If a technician wants to mix them to make 150 liters of Solution C which is 6% acid, how many liters of each should be mixed together?
thanks for the help!
Click here to see answer by Abbey(339) |
Question 5433: this question does not really go into this catorgory, but i could not find the right place to ask this question.
the questions is:
The x-coordinate of each point on the y-axis is
a.the same as the y-coordinate.
b.always positive
c.always zero
d.any number
I thought that the answer was d. any number, but i couldn't be too sure, so I thought i'd get some help on it. thanks.
Click here to see answer by Abbey(339) |
Question 5493: Two trains start toward each other on parallel tracks at the same time from towns 450 miles apart. One train travels 6 mph faster than the other train. What is the rate of each train if they meet in 5 hours?
thanks for the help!
Click here to see answer by Abbey(339) |
Question 5492: Bill walks from his home to the city in 4 hours. He can travel the same distance on his bicycle in 1 hour. If he rides at 6 km/h faster than he walks, what is his bicycling rate?
thanks for the help!
Click here to see answer by Abbey(339) |
Question 5598: If the new road is built from a point 14 miles south of the center of town to a point 10 miles west of the center of town, what is the length of the new road?
My answer was 17.2 miles long, but i'm not sure if that is right.
Thanks!
Click here to see answer by Earlsdon(6287) |
Question 5627: Find the distance between the pair of points whose coordinates are given. Express answers in simplest form using radicals or as decimal approximations.
(-1,-4)(-6,0)
I'm not quite sure what this is asking, or how to solve it.
Could you please help me?
Click here to see answer by Earlsdon(6287) |
Question 5778: 1. The greatest of four consecutive even integers is 14 less than twice the smalles integer. What are the integers?
2. The degree of measurement of angles of a triangle are consecutive even integers. What is the degree measure of each of the three angles?
3. The sum of two numbers is 18. Three times the greater number exceeds four times the smaller number by 5. What are the numbers?
Click here to see answer by longjonsilver(2297)  |
Question 5806: I am having a problem understanding interchanging linear equations between standard form and slope-intercept form. If -/- = +, and -/+ = -, wouldn't the answer to the following problem be -2x + 7/3?
6x + 3y = 7 My solution: 6x + 3y = 7
6x - 6x + 3y = 7 - 6x
3y = 7 - 6x all divided by 3
= y = 7/3 - 2x or -2x + 7/3
Click here to see answer by arunpaul(104) |
Question 5856: my question says: A 26 foot ladder is leaning against a building. The foot of the ladder is 10 feet away from the building. How far above the ground does the ladder touch the wall?
This is what i did:
a^2=26^2+10^2
a^2=676+100
a^2=776
a+27.86
Is this correct? thanks
Click here to see answer by CharStar(110) |
Question 5824: find the equation of the line parallel to the graph of 4x+2y=8 and containing (-1,5)
This was an example in my book, and they said to solve it, but they dont show how, so i'm just wondering, how would i go about solving this. I tried solving this and got y=2x+7 , but i'm not so sure that this is right. Help!
Click here to see answer by longjonsilver(2297) |
Question 5892: Suppose jodi invested $10,000 , part at 6% simple annual interest, and the rest at 9% simple annual interest. If you received $684 in simple interest after one year, how much did you invest at each rate?
My answer was:
$3999.60 at 6%
$5999.40 at 9%
Is this the right answer? please help me!
Click here to see answer by Abbey(339) |
Question 5891: A motorboat can travel at a rate of 15 mph in still water. It went downstream on a river in 4 hours. It took 6 hours to return the same distance. What is the rate of the current. How far did the boat go?
My answer was: Rate of current -30
The boat went 150 miles
Is this right? Thanks!
Click here to see answer by Abbey(339) |
Question 6158: To calculate the charge for a load of bricks, including delivery, the Redstone Brick Co. uses the equation c=0.42b+25, where c is the charge, b is the number of bricks, and $25 is the delivery charge per load. What is the charge for a load if b is 100?
Click here to see answer by arunpaul(104) |
Question 6332: Find two numbers with a geometric mean of sqrt 24 given that one number is two more than the other.
I had already asked this question, but the answer didn't seem right, because the question asked for TWO numbers.. not two equations... and also it said that one number is two more than the other....Now, the answer that you gave me was......2sqrt6-1 and 2sqrt6+1
This doesn't seem right, could you help me again? Thanks
Click here to see answer by xcentaur(357) |
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