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- anonymous

7 notebooks cost \$6.16
Which equation would help determine the cost of 4 notebook

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- anonymous

7 notebooks cost \$6.16
Which equation would help determine the cost of 4 notebook

- katieb

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- moazzam07

3.54

- moazzam07

sorry 3.52

- moazzam07

$3.52 is the value of 4 notebooks

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- kaitlyn_nicole

find the cost of one by dividing the 6.16 and 7 then take that amount and times it by 4.

- moazzam07

6.16 divided by 7 = 0.88
.88 times 4 = 3.52

- anonymous

i got to write a proportion

- moazzam07

@Black_ninja123 0.94? is wrong

- texaschic101

or you could set it up as a proportion...
7/6.16 = 4/x --- 7 notebooks for 6.16 = 4 notebooks for $x

- Black_ninja123

Yea 0.94 is wrong sorry

- kaitlyn_nicole

x=(7/6.16)x4

- texaschic101

7/6.16 = 4/x --- cross multiply
7x = (6.16)(4)
can you finish and solve for x

- anonymous

uhhhg i dont understand so many replies

- anonymous

its just writing proportions

- texaschic101

proportions are nothing but equivalent fractions

- texaschic101

7/6.16 = 4/x --- 7 notebooks for 6.16 = 4 notebooks for x dollars
CROSS MULTIPLY
(7)(x) = (6.16)(4)
7x = 24.64
x = 24.64/7
x = 3.52

- kaitlyn_nicole

x=(4/6.80) x 33

- anonymous

huh?

- anonymous

4 glue sticks cost \$6.80
Which equation would help determine the cost of 3 glue sticks?

- kaitlyn_nicole

x=(4/6.80) x 3
meaning that bc the 4/6.80 is in parenthesis then you do that first to find the cost of one, then you take the quotient of that and times it by three to find the cost.

- anonymous

i dont understand? wht?

- moazzam07

what grade are you in?

- anonymous

hmmmmmmm lets see uhhh not ur business

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