Homework Help: Algebra 1

Posted by connie on Thursday, March 15, 2012 at 12:48pm.

REINY, Thank you for your answer and the answer is obviously correct when you go back and do the multiplying ......however , I do not just want the answer, I desperately wish to understand from start to finish how you got the answer. I am sorry if I seem stupid, really , but how did you get 2x = 18 , x=9 where did the 18 come from? I am so confused. Thanks for your help!!!! connie Original Question
solve if x=student price and y =adult price and 2y + 5x=77 and 2y + 7x=95 what are the price for admission for both adult and child. Your Answer:subtract them:
2x = 18
x=9
sub into the first:
2y + 45 = 77
2y = 32
y = 16

Algebra 1 - Steve, Thursday, March 15, 2012 at 2:39pm
You didn't read his response carefully. The first instruction was "subtract them".

Assuming you understand the context of the problem, he meant to subtract one equation from the other:

2y+7x=95
2y+5x=77
----------- subtract and the 2y-2y goes away!
2x = 18
so, x=9

smooth sailing from there on.

Answer this Question

Related Questions

Algebra - There is a table of values for the function f. They read: x=3, f(x)=4 ...
SCIENCE!!--ANONYMOUS PLEASE ANSWER MY QUESTION! - plz answer the question we ...
algebra - Solve for s in this equation. Depreciation. D=C-s/n This is my answer ...
Algebra - Hi this question was already asked but there is still no correct ...
maths, algebra - State the degree of each of the following: a)3 b)x^0 My answer ...
English - 1. When he comes back, I will go out with him. 2. If he comes back, I ...
9th grade algebra/Ms Sue - No, I did not check Reiny's answer that night. I ...
Physics - Can anyone answer part 3 for me? I've tried so many incorrect ...
Algebra 2 - 1. Solve the following for x. 3-(x+(-4))= 2x-6+5x I figured that the...
HORRIBLE! - Hello, I took my ACT test today, and I think I epicly failed the ...

For Further Reading

First Name:
School Subject:
Answer: