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KengaRu [80]
3 years ago
14

Y = 2x -7 x + 2y = 1

Mathematics
1 answer:
Olenka [21]3 years ago
5 0
Easy
y=2x-7
sub 2x-7 for every y you se inother equation
x+2(2x-7)=1
x+4x-14=1
5x-14=1
add 14 both sides
5x=15
divide 5
x=3

sub back

y=2x-7
y=2(3)-7
y=6-7
y=-1

(3,-1) is solution
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Answer:

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3 years ago
Triangle ABC is an obtuse triangle with the obtuse angle at vertex B. Angle A must be
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Angle A must be acute.

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Note that it is impossible to have:

<span>2 right angles in a triangle, because <span>90°+90°=180</span>° and the third angle still needs to be added.1 obtuse and 1 right angle in a triangle, their sum is more than 180°2 obtuse angles in a triangle, their sum is more than 180°</span>

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2 years ago
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On Dan's eReader, 2/3 of the books are fiction. Of the fiction books,4/5 are mysteries. What fraction of the books on Dan's eRea
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Answer:

Step-by-step explanation:

Let's take a real situation. Suppose he has 1500 books in total

2/3 of them are fiction. Of means multiply.

them = 1500

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Now let's see what happens when we just do this by answering the question directly.

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3 years ago
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3 years ago
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