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Ipatiy [6.2K]
3 years ago
11

PLEASE ANSWER!!!

Mathematics
2 answers:
marin [14]3 years ago
8 0

Step-by-step explanation:

(10-0) ÷ (27-0) = x ÷ y

10 ÷ 27 = x ÷ y

27x = 10y

2,7x = y

The third one

Anika [276]3 years ago
7 0

Answer:

y = 2.7x

Step-by-step explanation:

y = 2.7x

Slopes:

(13.5-0)/(5-0) = 2.7

(27-13.5)/(10-5) = 2.7

Since the rate of change (slope) is a constant, it has to be a linear function, with a slope of 2.7

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Answer:

x= 4

Step-by-step explanation:

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Simplify<br> CLEAR Step By Step Explanation Please. <br> Will Mark Brainliest
siniylev [52]

Answer:

1/x+5

Step-by-step explanation:

1. Rewrite 3x as a difference

x-2/x^2 + 5x-2 - 10

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x-2/ x+(x+5) - 2(x+5)

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x-2/ (x+5)(x-2)

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3 years ago
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Blizzard [7]

Number of items sold by Shelley = 3 items.

Let us assume cost of each item sold by Shelley = $ x each.

Total cost of 3 items for Shelly sold = 3*x = 3x.

Number of items sold by Billy Bob = 4 items.

The cost of each item sold by Billy Bob = $2.25 less than the items that Shelley bought = $(x-2.25) each.

Total cost of 4 items for Billy Bob sold = 4*(x-2.25) = 4(x-2.25).

Both Shelley and Billy Bob paid the same amount of money. So, we can setup an equation now.

a) Total cost of 4 items for Billy Bob sold=Total cost of 3 items for Shelly sold.

4(x-2.25) = 3x

b) Solving equation for x now.

Distributing 4 over (x-2.25), we get

4x - 4*2.25 = 3x.

4x -9 = 3x.

Adding 9 on both sides, we get

4x -9+9 = 3x+9

4x =3x+9.

Subtracting 3x from both sides, we get

4x-3x =3x-3x+9.

x = 9.

c) Checking the solution of the equation by plugging x=9 in equation we got above.

4(x-2.25) = 3x  => 4(9-2.25)= 3*9

               => 4*6.75 = 27

               => 27 = 27.

We got left side = right side. So the solution x=9 is correct.

d) The cost of each item sold by Billy Bob = 9-2.25 = $6.75

Therefore, the cost of each item sold by Shelley is $9 and cost of each item sold by Billy Bob is $6.75.

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3 years ago
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Vanyuwa [196]

Answer:

a + 20 = 7*12 (multiplied both sides by 12)

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a = 64 (calculated 84-20)

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