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lorasvet [3.4K]
3 years ago
7

Sylvia is going to pick out a souvenir hat while she is on vacation. She knows the price of the hat will increase by 5% when she

pays sales tax. She writes the expression h + 0.05h to find the total amount she will pay for the hat if it costs h dollars. Jin correctly writes another expression, 1.05h, that will also find the the total amount Sylvia will pay for the hat if it costs h dollars. Use the drop-down menus to explain what each part of Sylvia's and Jin's expressions mean.

Mathematics
1 answer:
Novay_Z [31]3 years ago
5 0

Answer:Sylvia:

h:equals price of hat

0.05:percent sales tax

0.05h:amount of sales tax Sylvia will pay

h+0.05:total amount Sylvia will pay

Jin:

1.05:one whole plus percent sales tax

h:price of hat

1.05h:total amount Sylvia will pay

Step-by-step explanation:

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tatiyna

Answer:

Step-by-step explanation:

This is a proportional question. If you learn how to keep things together, they are not only easy to do, they are mechanical: they are all done exactly the same way.

tanks of gas             different tanks of gas          

==========     =         ================

hours                                  different hours.

initial tank of gas = 3/4 tank

initial hours = 9/2 = 4.5 hours

final tanks of gas = X

final time = 12 hours.

Solution

3/4                            x

====         =      ==============

4.5                           12

Cross multiply

4.5x = 12*3/4                      Combine the right

4.5x = 36/4                        Simplify  

4.5x = 9                              Divide both sides by 4.5

x = 9/4.5

x = 2

So she will need 2 tankfuls.

 

7 0
2 years ago
What is the missing value in the table below?
Lubov Fominskaja [6]

Answer:

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Step-by-step explanation:

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A hovercraft takes off from a platform. Its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=?
tangare [24]

Answer: 5 seconds

<u>Step-by-step explanation:</u>

Maximum height is the y-value of the vertex. The number of seconds at maximum height is the x-value (aka axis of symmetry).

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Axis of symmetry: x = \frac{-b}{2a}

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8 0
3 years ago
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Answer:

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Step-by-step explanation:

68 \times 7 = 476

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3 years ago
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3 years ago
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