Math
posted by AD .
Can you please show me how choose the right answer and how to get the right answer.
Which problem situation matches the equation below?
5x+5(x+20)=500
F. five people contributed to a fundraiser each give $20 more than the basic amount requested. In all, the amount contributed by these people totaled $500. What was the basic amount requested?
G. Jamal opened two investment amounts, each with 5% simple interest per year. In one, he deposited $20 more than in the other. Together, at the end of one year, the two accounts earned $500. How much had he deposited in each account?
H. A passenger train and a freight train leave the same station at the same time and go in opposite directions, the passenger train going 20 per hour faster than the freight train. At the end of 5 hours, the trains are 500 miles apart. Find the speed of the freight train.
J. A passenger train and a freight train are 500 miles apart and travel toward each other on parallel tracks. The speed of the passenger train is 20 miles per hour faster than that of the freight train. The freight train is moving at a rate of 40 miles per hour. How long will it take the two trains to pass each other?

Math 
Marth
Try writing an equation for each problem. It's easy to make a mistake while glancing over the answer choices.

Math 
Henry
Derive an Eq for the 1st prob. If it
does not match, setup the next problem. Continue until you find the Eq
that matches.
F. Amt requested = X dollars,
Amt ea gave = (X + 20) dollars,
Eq: 5(X + 20) = 500. Not a match.
G. 1st acc. inv. X dollers.
2nd acc. inv. (X + 20) dollars.
0.05X + 0.05(X + 20) = 500.
Multiply both sides by 100 to eliminate decimals.
Eq:5X + 5(X + 20) = 50000. Not a match.
H. Freight Train speed = X mi/h.
Pass. Train speed = (X + 20)mi/h.
d1 + d2 = 500.
Eq: SX + 5(X + 20) = 500. This is it!
Respond to this Question
Similar Questions

Physics
If 500 J of work are required to carry a charged particle between two points with a potential difference of 40V, the magnitude of the charge on the particle is: a) 0.040 C b) 12.5 C c) 20C D) cannot be computed unless the path is give … 
math
Hi, I had a question about exponential growth. The problem says: The population in Woonsocket is 43,500. Every year the population increases by 2%. Write the exponential equation that represents this situation. I put that the equation … 
math
a. If you begin with a right triangle with sides a, b, and c and decrease the right angle so it is an acute angle, how does compare with ? 
algebra
I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=4 y+2x=3 1(y+2x=3)y2x=4 now add the two equation y2x=3 y2x4 the answer would be 4y=7 then divided 4=7 answer 1.75 I no that there is more … 
algebra
I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=4 y+2x=3 1(y+2x=3)y2x=4 now add the two equation y2x=3 y2x4 the answer would be 4y=7 then divided 4=7 answer 1.75 I no that there is more … 
Math 7  Homework Question Check
12. Is the figure below a right triangle? 
math
This was on my test and have a few more question that is from my test. 18.The Sum of five unequal natural numbers is 90. The second largest of these five numbers can be at the most? 
English
1. Dokdo was recorded as part of Korea in the 500s. <in the 500s =in the five hundreds (right? 
Math
1. Which equation below matches the relationship shown in the table? 
Algebra
Which equation matches the statement "The product of 3 and the difference of a number and 10 is 15?