Dmitri wants to cover the top and sides of the box shown with glass tiles that are 3 5 mm square How many tiles does he need 20 cm 15 cm
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lets split the box in pieces and then add: top = 20*15 = 300 sidesA = 2*20*9 = 360, is multiplied by 2 cause there are 2 sides like this sidesB = 2*9*15 = 270, is multiplied by 2 cause there are 2 sides like this so in total we have: total = 300 + 360 + 270 = 930 cm^2 if we express this quantity in mm^2 we have: 1cm² = 100 mm²total = 930*100 = 93000 mm^2 so if the tiles are 5 mm^2 we need: total tiles = 93000/5 = 18600 we need 18600 tiles of 5 mm^2
Please help need an answer by today
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We don't know what the question is.
It could be "What is the selling price ?" If that's the question, then . . .
Since the store marks up their cost by 60% before they sell the thing, the price they sell it for is
(1.60 of their cost).
You know their cost. The selling price is (1.60 x $80) .
The perimeter of an equilateral triangle equals 3 times the length of one side. Write a function using two variables for this situation. Find the perimeter of an equilateral triangle with sides 18 inches.
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The answer is 3 * 18 inches so 54 inches.
Jan,Mya, and sara ran a total of 64 miles last week. Jan and Mya ran the same number of miles. Sarah ran 8 less miles than Maya. How many miles did Sarah run?
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Jan, Maya and Sarah run a total of 64 miles per week How many miles did Sarah run if she ran less than 8 miles compare to Maya and Jan Jan and Maya = x Sarah = x Total miles = 64
=> 64 = x + x + x-8 => 64 = 3x – 8 => 72 = 3x => x = 24 Since Jan and Maya ran the same miles, they ran 24 miles each Since Sarah is 8 less than Maya’s and Jan’s ran each => x – 8 => 24 -8 => 16 Sarah ran 16 miles in a week.
Which of these is an odd number 18, 10, 9, 8
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9, is the odd number.
9 is the most odd one....
Thirty plus the quotient of a number and two N = A Number (writting algebraic expression)