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Karo-lina-s [1.5K]
3 years ago
8

Solve and receive BRAINLIST ​

Mathematics
1 answer:
stira [4]3 years ago
8 0
-x+4y= -17
-x= -17-4y multiply everything by -1
x=17+4y

-6X-2y=2
-6(17+4y) - 2y=2
-102-24y-2y=2
-26y=2+102
-26y=104
y= -104/26
y= -4

x=17+4y
x=17+4•4
x=17+16
x=33
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Meg has saved up $350 to purchase a new TV from the local store. The sales tax in her county is 5% of the sticker price. Write a
Sergio [31]

For this case we have:

Let p be the highest price of the TV that Meg can buy

We have to:

5% of p is given by:

0.05p

So, we have:

p + 0.05p = 350

Clearing p we have:

1.05p = 350

p=\frac{350}{1.05}\\p=333.33

Thus, the highest price of the television that Meg purchases should be p = 333.33dollars.

Answer:

p + 0.05p = 350\\p = 333.33


3 0
3 years ago
Find the following Euler Totients using Euler’s Theorem, as explained on p.409 of the text (10 points each): a.ϕ(13) b.ϕ(81) c.ϕ
ad-work [718]

(a) \varphi(13)=12 since 13 is prime.

(b) 81=3^4, and there are 81/3 = 27 multiples of 3 between 1 and 81, which leaves 81 - 27 = 54 numbers between 1 and 81 that are coprime to 81, so \varphi(81)=54.

(c) 100=2^2\cdot5^2; there are 50 multiples of 2, and 20 multiples of 5, between 1 and 100; 10 of these are counted twice (the multiples of 2*5=10), so a total of 50 + 20 - 10 = 60 distinct numbers not coprime to 100, leaving us with \varphi(100)=100-60=40.

(d) 102=2\cdot3\cdot17; there are 51 multiples of 2, 34 multiples of 3, and 6 multiples of 17, between 1 and 102. Among these, we double-count 17 multiples of 2*3=6, 3 multiples of 2*17=34, and 2 multiples of 3*17=51; we also triple-count 1 number, 2*3*17=102. There are then 51 + 34 + 6 - (17 + 3 + 2) + 1 = 70 numbers between 1 and 102 that are not coprime to 102, and so \varphi(102)=102-70=32.

4 0
4 years ago
Which is a logical conclusion based on the information given in the figures
Dmitry_Shevchenko [17]
Selection C is the appropriate choice.
3 0
3 years ago
Math, homework, need help
Yanka [14]
Essentially, what you are doing is taking each individual point and moving that point as specified.

So, for example, problem 1 has coordinates as follows: (be aware: I have terrible eyesight, so the points are being named based on what I think the letters are).

X: located at (2,0), move 1 unit left, new location: (1,0)
G: located at (4,0), move 1 unit left, new location: (3,0)
Q: located at (2,-2), move 1 unit left, new location: (1,-2)
C: located at (3,-4), move 1 unit left, new location: (2,-4)

Now, just plot the new shape.

Let me know if you need more help!

5 0
3 years ago
Please answer correctly !!!!!! Will mark brainliest Answer !!!!!!!!!!!
enyata [817]

Answer:

45 meters

Step-by-step explanation:

graph the equation and find the y-intercept

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