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Lyrx [107]
3 years ago
8

Simplify the following 2(×+8k)+2k=​

Mathematics
1 answer:
omeli [17]3 years ago
5 0

Answer:

2x + 18k = X= -9k

Step-by-step explanation:

you have to solve the rational equation by combining expressions and isolating the variable x.

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Leah would like to earn at least $120 per month. She babysits for $5 per hour and works at an ice cream shop for $8 per hour. Le
Contact [7]

Answer:

A C

Step-by-step explanation:

Answer:

Step-by-step explanation:

Leah wants to earn at least 120 dollars a month and she has two job options. This is written as

5x + 8y > 120

She also can't work more than 20 hours, leading us to the second equation

x + y = 20

First we solve for one variable

y = 20 - x

then substitute it into the first equation

5x + 8(20 - x) = 120

Solve for x

5x + 160 - 8x = 120

3x = 40

     x = 40/3

Then we solve for y

y = 20 - x

     y = 20/3

x < 40/3

y > 20/3

B and D will not work because their x+y is greater than 20.

E will also not work because the value is less than 120

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3 years ago
The distance of planet Jupiter from the Sun is approximately 7.8 ⋅ 108 kilometers, and the distance of planet Saturn from the Su
katen-ka-za [31]
Distance of Jupiter to sun:
7.8*108=842.4
Distance of Saturn from sun:
1.5*109=163.5

difference:
842.4-163.5=678.9
6 0
4 years ago
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Find the dot product of the given vectors.<br> u=9i+4j<br> v=3i−j
Shkiper50 [21]

Answer:

23

Step-by-step explanation:

By definition of dot-product

sum the corresponding products.

u * v =  <9, 4> *<3, -1> = 9*3 + 4*(-1) = 27 -4 = 23

5 0
4 years ago
Directions:Simplify the following monomials.
aniked [119]

Answer:

1)49a

2)-15x^2

3)-27ab^3

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5-9c^2d^2

Step-by-step explanation:

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3 years ago
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Answer:

x=closest to 12m

Step-by-step explanation:

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