Angelica's service club is selling flowers for a fundraiser. Each flower costs them $0.50 to purchase. They set the sale price of each flower at the purchase price plus 40%. Write and solve an equation to determine how many flowers they will need to sell to make a profit of $500. Use complete sentences to explain what each number and variable in your equation represents. Write your solution in the context of the original problem.

Question

anonymous · Answer

@PinkSapphire

pinksapphire · Answer

0.50x+.40=500

pinksapphire · Answer

To make 40% into a decimal you have to move the decimal point 2 places to the right.

anonymous · Answer

How do I know what the variable represents?

pinksapphire · Answer

x=the number of flowers.

anonymous · Answer

It asked "Use complete sentences to explain what each number and variable in your equation represents"...how do i figure that out?

pinksapphire · Answer

0.50 represents the price of each flower, 0.40 represents the sale price and 500 represents the amount of money Angelica wants to make.

anonymous · Answer

Oh, okay. Do you mind helping me with 3 more?

pinksapphire · Answer

Sure.

anonymous · Answer

Angelo took a group of people to the movies and spent $80 on tickets. Adult tickets cost $10 and child tickets cost $6. The equation to represent his cost is 10A + 6C = $80. If there were 5 children in the group, how many adult tickets did he purchase? Show your work and use a complete sentence to explain your solution in the context of the original problem.

anonymous · Answer

@PinkSapphire

pinksapphire · Answer

10A+6(5)=80                         Plug in 5 for C.

10A+30=80                           Subtract 30 on both sides.
      -30  -30

10A=50

10A/10=50/10                      Divide by 10 on both sides to get A alone.       

A=5

anonymous · Answer

Oh, That was easier than I thought. Now, for the next two, I have tried SO many time but i cant get them right!!

pinksapphire · Answer

Angelo purchased 5 adult tickets.

anonymous · Answer

2.	Max was solving the equation below and isn’t sure if his answer is correct. Explain to Max how he can check his answer and then help him identify any errors he made. Provide the correct solution in your explanation.

		3x+6  =  7x-1
		   8            6

		24  (3x+6)  =  24(7x-1)
		 1        8              1       6

	          3(3x+6)  +  4(7x-1)
     
                   9x+18  =  28x-1

	           9x-9x+18  =  28x-9x-1
	         
	                       18  =  19x-1

 		     18+1  =  19x-1+1

		       19  =  19x

		            1  =  x

pinksapphire · Answer

What do the 8 and 6 represent below the equation?

anonymous · Answer

Sorry, It is supposed to be fraction but i guess it didnt come up

anonymous · Answer

and both 24 is supposed to be over 1

pinksapphire · Answer

Okay :)

pinksapphire · Answer

He made a mistake of multiplying 3/8 to get 24/1 which is not right.

anonymous · Answer

where do you see that he multiplied 3/8 ?

pinksapphire · Answer

It doesn't really show it but 3*8=24

anonymous · Answer

Oh, Okay. And the last one:

A quality control inspector is in charge of inspecting drill bits that are produced on an assembly line. The diameter of a drill bit can be modeled by the equation |x − 0.525| = 0.01. Show your work in solving the equation to determine the minimum and maximum diameters of the drill bits.

pinksapphire · Answer

I got x=0.535 and x=0.515

pinksapphire · Answer

This is how you do it: https://www.youtube.com/watch?v=NxbLXwXXp7Y

anonymous · Answer

Don't you set the answer to a negative a positive?

pinksapphire · Answer

No, just the equations.

anonymous · Answer

I attached my work from these problems..can you see if number four, the problem we just did, is correct?

pinksapphire · Answer

Sorry, I can't download it.