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Mathematics

2 answers:

QveST [7]4 years ago

6 0

I think number one should be 27

iren [92.7K]4 years ago

3 0

Answer:

27 and 200/3

Step-by-step explanation:

Let the no of orange pop cups be x,

Then,

2:3=18:x

2/3=18/x

2/3x=18

x=18/2/3

x=18×3/2

x=27

For no 2 everything is same except the rhs

2/3=x/100

2/3×100=x

200/3=x

Therefore 200/3 cups are needed to make 100 pineapple cups.

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Find the circumference of a circle with a diameter of 15 inches... Round to the nearest tenth and include units in your answer..

rosijanka [135]

Answer:

<em>47. 1 inches ; where inches ⇒ units</em>

Step-by-step explanation:

Consider the Circumference as such;

$Diameter - 15 inches,\\Circumference - 2\pi r, r - radius,\\\\2\pi r = \pi d, d - diameter ( considering, 2 * r = diameter )\\\\Circumference = \pi * d = \pi * diameter = \pi * 15 = ( About ) 47.1 inches\\Solution; Circumference = ( About ) 47.1 inches$