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Anna007 [38]
3 years ago
12

Solve: 8x+14y=4 6x+7y=10

Mathematics
1 answer:
Anarel [89]3 years ago
7 0

Answer:

Therefore, x = 4 and y = -2.

Step-by-step explanation:

The steps are ;

8x + 14y = 4

2(4x + 7y) = 4

4x + 7y = 2 -  -  - (1)

6x + 7y = 10 -  -  - (2)

(2) - (1)

6x - 4x = 10 - 2

2x = 8

x = 4

sub \: x = 4 \: into \: (1)

(1)⇒

4(4) + 7y = 2

16 + 7y = 2

7y =  - 14

y =  - 2

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Answer: • The inequality representing the chance of rain is r less-than 25 percent.

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• 24% is a solution to the inequality.

Step-by-step explanation:

Here's the complete question:

A meteorologist reports that the chance of rain today is less than 25%. The variable r represents the chance of rain. Which statements about this inequality are true? Check all that apply.

• The inequality representing the chance of rain is r greater-than 25 percent.

• The inequality representing the chance of rain is r less-than 25 percent.

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Based on the information provided in the question, the answers to the question are:

• The inequality representing the chance of rain is r less-than 25 percent.

• 4.5% is a solution to the inequality.

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Step-by-step explanation:

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