anonymous
  • anonymous
7 notebooks cost \$6.16 Which equation would help determine the cost of 4 notebook
Mathematics
katieb
  • katieb
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moazzam07
  • moazzam07
3.54
moazzam07
  • moazzam07
sorry 3.52
moazzam07
  • moazzam07
$3.52 is the value of 4 notebooks

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kaitlyn_nicole
  • kaitlyn_nicole
find the cost of one by dividing the 6.16 and 7 then take that amount and times it by 4.
moazzam07
  • moazzam07
6.16 divided by 7 = 0.88 .88 times 4 = 3.52
anonymous
  • anonymous
i got to write a proportion
moazzam07
  • moazzam07
@Black_ninja123 0.94? is wrong
texaschic101
  • 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
  • Black_ninja123
Yea 0.94 is wrong sorry
kaitlyn_nicole
  • kaitlyn_nicole
x=(7/6.16)x4
texaschic101
  • texaschic101
7/6.16 = 4/x --- cross multiply 7x = (6.16)(4) can you finish and solve for x
anonymous
  • anonymous
uhhhg i dont understand so many replies
anonymous
  • anonymous
its just writing proportions
texaschic101
  • texaschic101
proportions are nothing but equivalent fractions
texaschic101
  • 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
  • kaitlyn_nicole
x=(4/6.80) x 33
anonymous
  • anonymous
huh?
anonymous
  • anonymous
4 glue sticks cost \$6.80 Which equation would help determine the cost of 3 glue sticks?
kaitlyn_nicole
  • 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
  • anonymous
i dont understand? wht?
moazzam07
  • moazzam07
what grade are you in?
anonymous
  • anonymous
hmmmmmmm lets see uhhh not ur business

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