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Sharon went to a craft store with $9.00.She brought a doll for $2.25 and 5 key chains with the remaining money.There was no tax, and all the key chains were the same price. After buying the doll and the 5 key chains , she had no money left.part A:Write an expression that can be used to find the cost of each key chain. Part B: What was the cost of each key chain ? Part C: Sharon's friend says that each key chain cost the same amount of money as the doll cost. Explain whether Sharon's friend is correct or incorrect.Part D: If Sharon had not brought the doll instead bought a pencil for $0.90,how

Mathematics
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Okay, lets try to write out the expression.
okay
Karatehopper

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Other answers:

2.25+ 5x=9.00
x is the amount of keychains.
solve part b i need help
Well now that you have Part A down, lets look at Part b. as I stated, x is the amount of keychains. So we need to solve for x.
Solve for X. 2.25+ 5x=9.00
okay help me with part b
Try that on your own. I gave you the first step. ^
x=0.8
hello i did it
KarateChopper
Hello
okay good.
Thank You
But thats..not completely right.
What about part c and d
How did you solve that? can you show me?
You can't really do C and D till you get B right
|dw:1363831874025:dw|
I can't read that....
2.25+5x+9.00 9.00-5=4 5x=4 x=0.8
2.25 + 5x = 9.00 (subtract 2.25 from each side) 2.25 - 2.25 + 5x = 9.00 - 2.25 (combine like terms) 5x = 6.75 (now divide each side by 5) 5x/5 = 6.75/5 x = 1.35 do you understand ?
yes
1.35 is the price of the key chains.
let me rephrase that...1.35 is the price of 1 keychain
now I think you can do C.
how can do part c and d
C. Sharon's friend says that each key chain costs the same amount of money that the dolls costs. Is she correct ? Well, we have established that a key chain costs $1.35. We were told that the doll costs $ 2.25. Do they cost the same ? You can answer this one. D. If Sharon had not bought the doll and instead bought a pencil for 90 cents. I am not sure what you are asking.....how much would it cost, or how much change would she get back....lets figure both. .90 + 5(1.35) = new total cost .90 + 6.75 = 7.65 Now if she had $9.00, how much change would she get back ? 9.00 - 7.65 = 1.35 (change back) I am not sure what you were looking for in part D, but I hope I covered it for you.

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