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Lerok [7]
3 years ago
14

Ughhh i don’t understand this!! someone pls help?!

Mathematics
1 answer:
Tanya [424]3 years ago
3 0
I think it is 18 because how I do it, 60 / 10=
6x3=18 I divide it into tenths and then I muliply by how much.
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Jen solved the equation to determine the number of questions, x, she answered incorrectly on a test. She began by subtracting 10
fgiga [73]
Answer is Correct. She could have also subtracted 100 from both sides, then divided by .
8 0
3 years ago
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Find the vertex, focus, and directrix. y = 1/24(x+1)² - 3. 
Vedmedyk [2.9K]
y = \frac{1}{24}(x+1)^2 - 3\\\\y+3 =\frac{1}{24}(x+1)^2\ \ / *24\\\\ (x+1)^2 = 24(y+3)

This   is  an  equation  of  a  parabola  that  opens  upwards.

Its \ standard \ form: \\(x-h)^2=4p(y-k)\\ (h,k)=(x,y) \ coordinates \ of \ the \ vertex\\\ (h,k)=(-1,-3) \\\\axis \ of \ symmetry: \ x= -1\\ \\4p=24\ \ /:4\\p=6

focus:(h,k+p)=(-1,-3+6)=(-1,3) \\ \\directrix: \ y=k-p=-3-6=-9


6 0
3 years ago
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Lydia is deciding between two different movie streaming sites to subscribe to. Plan A costs $5 per month plus $2.50 per movie wa
Delicious77 [7]
Um Plan B would be two dollars cheaper than plan A ..

I set the equations up like this :

5+2.50x=
24+1.50x=

Only because thats how many movies she plans on watching.

5+2.50(21)=57.50
24+1.50(21)=55.50
7 0
3 years ago
A pair of shoes usally sells for $68. If the shoes are 20% off, and sales tax is 7%, what is the total price of the shoes, inclu
Eduardwww [97]

Answer:

$50.59

Step-by-step explanation:

First you take off 20% from 68. ( 68 * 0.2 = 13.6 )

68- 13.6 is 54.4

for the sales tax, you take out 7% of 54.4

54.4 * 0.07 = 3.808

54.4-3.808 = 50.59!

7 0
3 years ago
Which table shows a proportional relationship between x and y
Anettt [7]

Answer: A, and their proportional relationship is 5

Step-by-step explanation:

7 0
3 years ago
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