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Ghella [55]
2 years ago
13

Berta worked to solve a system of equations. 4x + y = –5 x – y = –5 Step 1: ??? Step 2: x = –2 Step 3: 4(–2) + y = –5 Step 4: –8

+ y = –5 Step 5: y = 3 Berta determined that the solution is (–2, 3). Which could have been the equation Berta found in step 1?

Mathematics
2 answers:
PolarNik [594]2 years ago
8 0
4x + y = -5
 x -  y  = -5     Adding;_
5x = -10
x = -2

required equation is 5x = -10
Lemur [1.5K]2 years ago
7 0
5x= -10
I hope I could help.

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dolphi86 [110]
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5 0
3 years ago
To get from his house to the lecture hall at school, Lin walked west 651 feet. After class, he walked northeast 910 feet to the
Ahat [919]

The general direction that Lin walked from the gym to his house is; B: Lin walked southwest, creating an obtuse triangle.

<h3>How to interpret distance bearing?</h3>

We are given;

Distance between the lecture hall and gym = 910 feet.

Distance between the gym and Lin apostrophe's house = 615 feet.

Distance between the lecture hall and Lin apostrophe's house = 651 feet.

Now, since this 3 distances form a triangle and the 3 distances are unequal, then we can call it an obtuse triangle since he walked west and then walked northwest.

Now, since he walked back to his house from the gym, we can say that he walked southwest if we picture the bearing of his first two directions.

Read more about Distance Bearing at; brainly.com/question/22719608

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4 0
2 years ago
Please help I’ll make brainliest
blondinia [14]

Answer:

Whats the directions?

Step-by-step explanation:

7 0
2 years ago
What are the solutions of the equation 2x2 = 2? Use a graph of the related function. A. There are two solutions: -1 and 1. B. Th
Lemur [1.5K]
Hello :
2x² = 2
x²=1
x²-1=0
(x-1)(x+1) = 0
x-1=0 or x+1=0
x=1 or x= -1...(answer : <span>B. There are two solutions: -1 and 1 )</span>
7 0
3 years ago
Read 2 more answers
Please help me solve this question :)
Semenov [28]

Answer:

x=1

y=12

Step-by-step explanation:

12345

12.24.36.48.60

4 0
3 years ago
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