Need answer ! 3. a local band had a concert and made $1,824 from ticket sales. if each ticket cost $16, how many tickets did the band sell? (write and solve an equation.) what are you trying to find? what is the important information? write the equation below. what does the variable represent? solve and show work below. 4. the selling price of a television in a retail store is $66 less than 3 times the wholesale price. if the selling price of a television is $899, write and solve an equation to find the wholesale price of the television. what are you trying to find? what is the important information? write the equation below. what does the variable represent? solve and show work below. 5. kobayashi set a world record for hot dog eating when he ate 50 hot dogs in 720 seconds. write and solve an equation to find how many seconds it took him to eat one hot dog. what are you trying to find? what is the important information? write the equation below. what does the variable represent? solve and show work below.

3. $1,824 divided by $16 equals 114

4. $66x3=$198 $198-$899= $701

5. 50 divided by 750= 14.4 it took kobayashi 14.4 seconds to eat 1 hotdog

1824/16=114

That’s one of the answers

starting with:    

5 + x - 12 = 2x - 7   

5 + x - 12 - x = 2x - 7 - x (subtract x from both sides)   

5 - 12 = x - 7 (combine and cancel x's from both sides)   

5 - 12 + 7 = x - 7 + 7 (add 7 to both sides)   

0 = x (add numbers together on both sides)       

so in order for the equation to be true, x must be 0.   

trying x = -0.5   

5 + x - 12 = 2x - 7 (original equation)   

5 + -0.5 - 12 = 2(-0.5) - 7 (plug in value of x)   

5 + -0.5 - 12 = -1 - 7 (did multiplication)   

-7.5 = -8 (did addition on both sides)       

since -7.5 is obviously not equal to -8, the value of -0.5 for x is wrong.   

trying x = 0   

5 + x - 12 = 2x - 7 (original equation)   

5 + 0 - 12 = 2(0) - 7 (plug in value of x)   

5 + 0 - 12 = 0 - 7 (did multiplication)   

-7 = -7 (did addition on both sides)       

since -7 equals -7, that demonstrates that the value of 0 for x is correct.   

trying x = 1   

5 + x - 12 = 2x - 7 (original equation)   

5 + 1 - 12 = 2(1) - 7 (plug in value of x)   

5 + 1 - 12 = 2 - 7 (did multiplication)   

-6 = -5 (did addition on both sides)       

since -6 is obviously not equal to -5, the value of 1 for x is wrong.