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disa [49]
3 years ago
13

[y = x + 4][3x -2y =-7] substitution

Mathematics
1 answer:
tia_tia [17]3 years ago
3 0

Answer:

x=15, y=19

Step-by-step explanation:

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Draw a number line and mark all described points. 5x<12
attashe74 [19]

Answer:

x < 2.4

Step-by-step explanation:

5x < 12

x < 12/5

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On the number line, draw an arrow going towards left from 2.4, with an open circle at 2.4

7 0
3 years ago
Help me plz!!!!!!!!!
GrogVix [38]

Answer:

Part A - D:8

Part B - C:140°

<h3>Solving/Reasoning:</h3>

Part A: Vertical angles are always congruent.

Part B: If angles are supplementary, they need to equal 180 when added together. Since we know angle A is 40, we can subtract it from 180 and figure out what is left over that should be angle B.

40+B=180

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B=140

5 0
2 years ago
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What is the product?<br> -9x(5-2x)<br> 2
fiasKO [112]

-9x(5-2x)

What does the second two mean?

6 0
2 years ago
If triangle DEF is classified as equilateral, which statement must be true?
valina [46]

Answer:

Step-by-step explanation:

Answer: All three sides are congruent

The problem is with A. It's true as well. At least 2 of the sides are congruent. The way to eliminate it is to say that does not mean specifically that all three sides are congruent.

I would argue that this is a faulty question, and watch someone squirm as they try to explain to you why a is not the answer. I don't know how to comply with your request. How are the choices designated

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3 0
1 year ago
How many days is 45% of 31 days
Westkost [7]

Answer:

45% of 31 days is 13.95 days, theres your answer.

7 0
3 years ago
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