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olasank [31]
3 years ago
10

Can someone please help me with this?

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
6 0
The first answer is 2
The Second is 8 
The third is, if the w changes then the p would change as well resulting to multiplication 


Hope this helps!!! 
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Yuki bought a dress on sale for $72. The sale price was 60% of the original price. What was the original price of the dress?
Ronch [10]

The original price would be 43.20.

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A food company distributes its tomato soup in two cans of different sizes. For the larger can, both the diameter and the height
Lady_Fox [76]

Problem

A food company distributes its tomato soup in two cans of different sizes. For the larger can, both the diameter and the height have been increased by 15%.

By what percentage does the volume increase from the smaller can to the larger can? Round your answer to the nearest percent. ​

Solution

the volume of a cylinder is given by:

V=\pi r^2h

We know that the diameter=radius and the height are increased by 15% so then the new volume can be calculated on this way:

V=\pi(1.15r)^2\cdot(1.15h)=1.15^2\cdot1.15\cdot\pi\cdot r^2\cdot h=1.52\pi r^2h

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1 year ago
Julio and David were in Target and decided to check out the clearance section. They found pencils and erasers that were on sale
Sati [7]

Answer:

Cost of one pencil: \$0.07

Cost of one eraser: \$0.03

Step-by-step explanation:

Let be "p" the cost in dollars of one pencil and "e" the cost in dollars of one eraser.

Based on the information given in the exercise, you can set up the following system of equations:

\left \{ {{4p+3e=0.37} \atop {3p+4e=0.33 }} \right.

You can use the Elimination Method to solve the system of equations.

Multiply the first equation by -3 ad the second one by 4. Then add the equations and solve for "e":

{\left \{ {{-12p-9e=-1.11} \atop {12p+16e=1.32}} \right.\\..........................\\7e=0.21\\\\e=0.03

Substitute the value of "e" into any original equation  and solve for "p":

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3 years ago
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what number would you like answered


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Answer:

The best buy item is the Frito-Lay mi Variety Pack. Going for only 0.35 per item.

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All I did was the equations and then I compared the answer, the lowest answer is the best buy since it is the lowest price found.

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9.88/28 = 0.35

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