Panjang sisi persegi yang mempunyai luas 729 cm² adalah ….
Answer (5)
Set it up as a ratio. $5.25/5 = $1.05 per notebook
Then solve your equation by multiplying the cost by 3. 3 * $1.05 = $3.15
The cost of **3 notebooks **is $4.5.
Given,
If five notebooks cost $5.25.
We need to find out how much would three notebooks cost .
How do find the cost of a required number of items from the cost of a number of items?
If we have,
3 apples cost $6.
3 apple = $6
To find the cost of 5 apples.
We will try to make the 3 apples into 5 apples.
Multiply 5/3 on both sides.
5/3 x 3 apples = 5/3 x $6
5 apples = $10
Find the cost of** 5 notebooks.**
= $5.25
Find the cost of three notebooks.
We have,
5 notebooks = $5.25
Multiply 3/5 on both sides.
3/5 x 5 notebooks = 3/5 x $5.25
3 notebooks = $4.5
Thus the cost of 3 notebooks is $4.5.
Learn more about** how to find the cost of one cup of coffee and one piece of cake** here:
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The cost of three notebooks is $3.15 when five notebooks cost $5.25. This is calculated by first finding the cost of one notebook and then multiplying by three. So, the equation used is 3 × 1.05 = 3.15 .
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•°• Panjang sisi persegi yang mempunyai luas 729 cm² adalah 27 cm.[tex] \\ \\ [/tex]Penjelasan dengan langkah-langkah:Luas persegi = 729 cm²Panjang sisi (s) = ?[tex] \: [/tex]s = [tex]\sf{\sqrt{Luas}}[/tex]s = [tex]\sf{\sqrt{729}}[/tex]s = [tex]\sf{\sqrt{27²}}[/tex]s = 27 cm[tex] \: [/tex]•°• Jadi, panjang sisi persegi tersebut adalah 27 cm.[tex]~[/tex][tex]__________________________________________________________________________________________[/tex][tex] \\ \\ [/tex] [tex]\blue{\boxed{\colorbox{skyblue}{\rm{- AvR}}}}[/tex]
DiketahuiLuas persegi 729 cm²DitanyaSisiDijawabSisi[tex] = \sqrt{l} = \sqrt{729} = 27[/tex]KesimpulanJadi jawabannya 27 cm.
