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Blizzard [7]
3 years ago
7

The can of tomatoes is three times as tall but one-third as wide as the can of tuna. What is true about the areas of their label

s?

Mathematics
1 answer:
yulyashka [42]3 years ago
8 0
Problem One
Call the radius of the second can = r
Call the height of the second can = h

Then the radius of the first can = 1/3 r
The height of the first can = 3*h

A1 / A2 = (2*pi*(1/3r)*(3h)] / [2*pi * r * h] 

Here's what will cancel. The twos on the right will cancel. The 3 and 1/3 will multiply to one. The 2 r's will cancel. The h's will cancel. Finally, the pis will cancel

Result A1 / A2 = 1/1
The labels will be shaped differently, but they will occupy the same area.

Problem Two
It seems like the writer of the problem put some lids on the new solid that were not implied by the question.

If I understand the problem correctly, looking at it from the top you are sweeping out a circle for the lid on top and bottom, plus the center core of the cylinder. 

One lid would be pi r^2 = pi w^2 and so 2 of them would be 2 pi w^2
The region between the lids would be 2 pi r h for the surface area which is 2pi w h

Put the 2 regions together and you get
Area = 2 pi w^2 + 2 pi w h

Answer: Upper left corner  <<<<< Answer
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Please can u give me this answer ☹️
Jlenok [28]

Answer:

the second one

Step-by-step explanation:

Hello There!

The area of a triangle can be found using this formula

A = \frac{1}{2} (a+b)h

where a and b = bases and h = height

The trapezoid shown has the following dimensions

top base = 9cm

bottom base = 14 cm

height = 12 cm

slant height = 13 cm

using this information, we plug in the values into the formula

So A = \frac{1}{2} (9+14)12

the equation we created matches the 2nd equation therefore the second one is your answer

7 0
3 years ago
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Kristin is 20 miles behind a truck that is driving 50 miles per hour. How long will it take her to catch up to the truck? How fa
creativ13 [48]
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8 0
3 years ago
As an estimation we are told £3 is €4.
NeX [460]

Answer:

25.60 €.

Step-by-step explanation:

£3 is €4

So £1 is €4/3

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6 0
2 years ago
What equation this show<br> The cost of 10 pounds of potatoes is 8 dollars
Alekssandra [29.7K]
To formulate the equation that shows the cost of 10 pounds of potatoes is 8 dollars we proceed as follows;
suppose the cost 1 pound is x;
thus,
total cost=(amount in pounds)*(price of one pound)
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cost of one pound=x
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8 0
3 years ago
Please help!! A scale on a hiking map shows at 3 inches represents 1.25 miles. What number of inches on the map represents 10 ac
Semenov [28]

Answer:

24 miles

Step-by-step explanation:

Set up a proportion:

3 inches/1.25 miles = x inches/10 miles

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5 0
3 years ago
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