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Nady [450]
3 years ago
9

On the field trip, Abbey, Bethany, Christine, and Darcy bought a total of 4 hot dogs and 3 sodas, which cost the girls $17.00. E

dward bought 2 hot dogs and 1 soda from the same lunch stand and it cost him $7.80 before tax. How much would one hotdog and one soda cost before tax?
Mathematics
1 answer:
Eddi Din [679]3 years ago
4 0

Answer:

6.30$

Step-by-step explanation:

If you add 7.80$ and 7.80$ that come to 4 hot dogs,

The rest of the money is how much one soda cost ( 2.40$ ),

Dividing that 7.80$ by 2, To only have one hot dog, would put you at

3.90$ fro one hot dog, then all you have to do is add them together, to get the total of 6.30

 7.80   |     17.00      |    7.80/2  |    2.40

+ 7.80  |    - 15.60     |    3.90     |  + 3.90

15.60   |   2.40          |                |   6.30

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Answer:

Given:

length of the wire = 0.20 meters

magnetic field strength = 0.45 newtons/amperes meter

speed = 10.0 meters per second

emf = B * l * v 

B = flux density ; l = length of the wire ; v = velocity of the conductor

emf = 0.45 newtons / ampere meter * 0.20 meters * 10.0 meters/seconds

emf = 0.90 volts

The emf produced is 0.90 volts.

Step-by-step explanation:

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2 years ago
The population of Watesville decreases at a rate of 1.6% per year. If the population was 62,500 in 2014, what will it be in 2020
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Answer:

56,735 people

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We can set up an equation to model this:

The equation for exponential decay is y = C(1 - r)^t, where C is the original amount, r is rate of change, and t is time.

We can plug in the corresponding values and solve:

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Question 8<br> A scuba diver descends 13 feet and then another 20 feet. What is his final position?
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A parallelogram has an area of x^2 + 9x - 36. A. What are expressions for the length and width of the parallelogram?B. If x is a
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Step-by-step explanation:

Area  \: of  \: parallelogram  \\  =  {x}^{2}  + 9x - 36 \\  =  {x}^{2}  + 12x - 3x - 36 \\  = x(x + 12) - 3(x + 12) \\  = (x  + 12)(x - 3) \\  \implies \\ length = (x + 12) \: units \\ width = (x - 3) \: units \\

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