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alexandr1967 [171]
3 years ago
13

HELP PLEASE

Mathematics
1 answer:
melamori03 [73]3 years ago
7 0

Answer:

C, (12, -1)

Step-by-step explanation:

x - 2y = 14

x + 3y =9

Add 2y to both sides

x = 14 +2y

Substitute this into the second equation and solve

14 + 2y + 3y = 9

5y = 9 - 14 = -5

5y = -5

y = - 1

(you don't need to do this step because there is only one equation with y=-1, but just in case...)

Plug y into the first equation:

x - 2(-1) = 14

x - (-2)= x+2

x + 2 =14

x =12

Therefore, the answer is (12, -1)

The answer is C

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omeli [17]

Inequalities help us to compare two unequal expressions. The correct option is B.

<h3>What are inequalities?</h3>

Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.


The given inequality -6 ≤y + 2x < 15 can be broken into two small inequality, as shown below.

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Now, if we plot the inequality as shown below, then the area in which both the shaded region overlap is the area of the this inequality.

Hence, the correct option is B.

Learn more about Inequality:

brainly.com/question/19491153

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