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jarptica [38.1K]
4 years ago
9

Whoever answers this NOW will get brainliest

Mathematics
1 answer:
gavmur [86]4 years ago
5 0

Answer:

I think is -x + 105/42y

Step-by-step explanation:

2(3/10)x - 5/7y - 4(5/6)y - 2(4/5)x

6/10x - 5/7y - 20/6y - 8/5x

6/10x - 8/5x - 5/7y - 20/6y

6-16/10x - 35+140/42y

-10/10x + 105/42y

-x + 105/42y

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AnswerNaruto fan?

Step-by-step explanation:

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4 years ago
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Question 1: False
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5 0
4 years ago
Rational equations help.
omeli [17]

Answer: first option

Step-by-step explanation:

Direct variation equation has the following form:

y=kx

Where "k" is the constant of variation.

In direct variation  when the variable "x" increases, the variable "y" increases by the same factor and when the variable "x" decreases, the variable "y" decreases by the same factor.

Inverse variation equation has the form:

y=\frac{k}{x}

 Where "k" is the constant of variation.

In inverse variation  when the variable "x" increases, the variable "y" decreases by the same factor and when and when the variable "x" decreases, the variable "y" increases by the same factor.

Given the equation:

r=\frac{l}{pt}

You can observe that "r" varies directly with "l" and inversely with "p" and "t"

8 0
3 years ago
The following are the ages (years) of 5 people in a room: 24 , 24 , 15 , 16 , 19 A person enters the room. The mean age of the 6
olga_2 [115]

Answer:

16 years old.

Step-by-step explanation:

(24+24+15+16+19+X) / 6 = 19

(98 + X) / 6 = 19

98 + X = (19)*(6)

98 + X = 114

X = 114-98

X = 16

4 0
3 years ago
A coffee distributor needs to mix a(n) Mexican Shade Grown coffee blend that normally sells for $8.30 per pound with a House cof
Aleksandr [31]

Answer:the number of pounds of the Mexican Shade Grown Blend that should be mixed is 11

the number of pounds of the House Blend that should be mixed is 9

Step-by-step explanation:

Let x represent the number of pounds of the Mexican Shade Grown Blend that should be mixed.

Let y represent the number of pounds of the House Blend that should be mixed.

The total number of pounds of coffee created is 20. It means that

x + y = 20

The Mexican Shade Grown coffee blend normally sells for $8.30 per pound with a House coffee blend normally sells for $13.70 per pound. The mixed coffee can sell for $10.73 per pound. This means that the total cost of 20 pounds would be 20 × 10.73 = $214.6

Therefore,

8.3x + 13.7y = 214.6 - - - - - - - - - 1

Substituting x = 20 - y into equation 1, it becomes

8.3(20 - y) + 13.7y = 214.6

166 - 8.3y + 13.7y = 214.6

- 8.3y + 13.7y = 214.6 - 166

5.4y = 48.6

y = 48.6/5.4 = 9

x = 20 - y = 20 - 9

x = 11

5 0
3 years ago
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