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Free_Kalibri [48]
3 years ago
7

Solve the system of equations. X + y = -4 and y= -x + 5

Mathematics
1 answer:
goldenfox [79]3 years ago
4 0

Answer:

NO SOLUTIONS!!

Step-by-step explanation:

We are given the equations of two lines:

 x + y = -4   and

 x + y =  5.

Here, we are to find two ral numbers, (x, y) such that x + y = -4 and 5 at the same time. This is clearly not possible.

So we say this system of equations is inconsistent and have no solutions.

This means that when we graph them these two lines will never intersect and in fact they are a pair of parallel lines.

So, the system does not have a solution.

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The third graders at Grace Hardeman Elementary want to play kickball. There are 20 students, and each team will have 5 students.
Julli [10]

Answer:

D

Step-by-step explanation:

If there are 20 students, and each team has 5 students, then there will be 4 teams of third graders that will play kickball.

20/5 = 4

5 0
2 years ago
Name the algebraic property demonstrated in the example below.
lilavasa [31]
The algebraic property demonstrated in the example below is Transitive Property of Equality. There we can see how the first thing is equal to the second one and notice that the first one is equal to the third one too. This is a  Transitive Property of Equality in a nutshel. 
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3 years ago
How do I find the endpoint of a segment when given the first endpoint (-6, 5) and the midpoint(-1.5, 1)?​
Anika [276]

Answer:

(3, -3)

Step-by-step explanation:

Use the midpoint formula.

x = (x₁ + x₂) / 2

-1.5 = (-6 + x) / 2

-3 = -6 + x

x = 3

y = (y₁ + y₂) / 2

1 = (5 + y) / 2

2 = 5 + y

y = -3

The other endpoint is (3, -3).

Graph: desmos.com/calculator/aze920ns2h

3 0
3 years ago
When five is added to three more than a certain number, the result is 19. What is the number?
pshichka [43]

Answer:

11 easy

Step-by-step explanation:

5 plus the three from the three more makes 8 eight minus 19 is 11

3 0
3 years ago
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Heights of 10-year-olds, regardless of gender, closely follow a normal distribution with a mean of 55 inches and a standard devi
Svetllana [295]

Answer:

Step-by-step explanation:

Given that Heights of 10-year-olds, regardless of gender, closely follow a normal distribution with a mean of 55 inches and a standard deviation of 6 inches.

If X is height then X is N(55,6)

Z score would be \frac{x-55}{6}

a) P(X

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c) Tallest 10% z = 1.28

X score = 48+1.28(6) = 55.68  inches

d)P(X

i.e. 16.37% cannot go on this ride.

7 0
3 years ago
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