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tester [92]
3 years ago
5

True or False. The points X, R, K and H coplanar in the attached image.

Mathematics
1 answer:
erik [133]3 years ago
3 0

Answer:

Step-by-step explanation:

true

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Solve the system of equations using multiplication. 3x – 3y = –3 5x – y = –13 What is the solution of the system?
love history [14]

ANSWER

The solution is

x=-3,y=-2

EXPLANATION

First equation

3x – 3y = –3

Second Equation:

5x – y = –13

Multiply the second equation by 3 to get:

Third equation:

15x-3y=-39

Subtract the first equation from the third equation:

15x - 3x =  - 39 -  - 3

12x =  - 36

Divide both sides by 12,

x =  \frac{ - 36}{12}  =  - 3

Put x=-3 into the first equation:

3( - 3) - 3y =  - 3

- 9  - 3y =  - 3

Group like terms,

- 3y =  - 3 + 9

- 3y = 6

y =  - 2

The solution is

x=-3,y=-2

6 0
3 years ago
Lionel plays trumpet for a minimum of 45 minutes on the days that he practices. If x is the number of days that Lionel practices
Angelina_Jolie [31]

Answer:

The inequality is 0.75x\geq y

Step-by-step explanation:

Given : Lionel plays trumpet for a minimum of 45 minutes on the days that he practices. If x is the number of days that Lionel practices and y is the total number of hours he spends practicing.

To find : Which inequality represents this situation?

Solution :  He plays trumpet for a minimum of 45 minutes

45 \text{minutes}=\frac{45}{60}=\frac{3}{4}=0.75\text{hours}

If x is the number of days that Lionel practices then he practices for at least 

=0.75x hours

y is the total number of hours he spends practicing

So, the inequality form is:

0.75x\geq y

i.e, 0.75x is greater than y.



5 0
3 years ago
Read 2 more answers
What is the LCM of 6, 10, and 15?<br> 50
Thepotemich [5.8K]

Answer:

okay

Step-by-step explanation:

4 0
3 years ago
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Can you guys help me out.​
mrs_skeptik [129]

Answer:

y = -21

Step-by-step explanation:

8 0
3 years ago
What is equivelint in ratio
fgiga [73]
A equivelint  ratio is when u can multi or divide by both sides
6 0
3 years ago
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