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Illusion [34]
3 years ago
8

Three stores have the same tablet computer on sale. The regular price of the tablet is $150. Store A is offering the tablet on s

ale at 15% off the regular price. Store B is offering a $25 coupon to be deducted from the regular price. Store C is offering a rebate of $20.00 to purchasers. Store D has the tablet on sale for $120.00. Which store is offering the tablet at the lowest cost?
1. Store A
2. Store B
3. Store C
4. Store D
Mathematics
1 answer:
MArishka [77]3 years ago
8 0
Store D is selling the tablet at the lowest cost
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Emilio and friends are in a submarine 500 feet below sea level. They continue to dive 35 feet each hour for 7 hours.
katovenus [111]
You would write the equation out as x=35x+500

You substitute x for 7 so it’s x= 35(7)+500

So the answer will be 745 dollars
4 0
3 years ago
Help, please!! 25 pts!! Very confused!!!
jonny [76]
260+(20x) =140+(30x)
x represents the number of months.
subtract 20x from both sides and subtract 140 from both sides
120=10x
divide each side by 10
12=x
So in 12 months, Jamal will have paid the same amount to both shops.

To check your answer, you plug in 12 for x.
260+20(12)=140+30(12)
260+240=140+360
500=500

Hope this helps.
7 0
3 years ago
Read 2 more answers
Work out the height of this triangle with base, <br> b = 8mm <br> and area, <br> A= 218.8mm2.
Vinil7 [7]

Answer:

54.7

Step-by-step explanation:

3 0
3 years ago
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PLEASE HEELPPP PEOPLE :(!!!
andreyandreev [35.5K]

Answer: Origin, 8,0, 8,3,and 0,3

Step-by-step explanation:

Firstly, it tells us that we need to rotate it around the origin, so no matter what, the origin will always be one of our coordinate. After that -10 and -2 has an 8 difference, so if it is 180 degrees, the co-ordinate must be 8 since the origin and 8 is also a difference of eight.

Secondly, now when we need to find out the height, we know that 5 and 2, which are the heights of D and C, the difference is 3. So x-0=3, well, we already know that x is 3 because 3+0=x. That means DC on the other side is 0,3 since we always read the x axis first and then the y. And there you go! You now know the 4 co-ordinates! They are 0,0 , 8,0 , 8,3 and 0,3

Hope this helps :>

5 0
3 years ago
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Entomologists have discovered that a linear relationship exists between the rate of chirping of crickets of a certain species an
vekshin1

Answer:

a) y=4x-160

b) y=4(102)-160=248\frac{chirps}{min}

Step-by-step explanation:

We know that theres a <u><em>linear relationship</em></u> between the rate of the chirping of crickets and the air temperature.

<u><em>The equation of a line is</em></u>:

y=mx+b

So, let's name our variables

x= Temperature

y=Rate of the chirping

First of all, we need to find the <u><em>slope</em></u> with the two given points

x_{1}=60ºF , y_{1} =80\frac{chirps}{min}

x_{2} =80ºF, y_{2} =160\frac{chirps}{min}

By,

m=\frac{y_{2}-y_{1}  }{x_{2}-x_{1}  } =\frac{160-80}{80-60}

m=4

<u>Now, the </u><em><u>equation</u></em><u> between the air temperature and the number of chirps is:</u>

y-y_{1} =m(x-x_{1} )

y-80=4(x-60)

Solving for y,

a) y=4x-160

b) <u>To calculate the </u><u>rate</u><u> at which the crickets chirp when the </u><u>temperature is 102 ºF</u><u> we need to evaluate y(102)</u>

y=4(102)-160=248\frac{chirps}{min}

5 0
3 years ago
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