Answer:
A
Step-by-step explanation:
Multiply the number by every element of the matrix. Answer: A
1. 4
2. 12
3. 6
4. 18
5. 2
6. 4
7. 7
8. 15
9. 9
Answer:
<h2>
0.67</h2>
Step-by-step explanation:

Distribute 5 through the parentheses

Distribute 4.7 through the parentheses

Move ' 4.7 y ' to L.H.S and change it's sign

Move constant to R.H.S and change it's sign

Collect like terms

Calculate

Divide both sides of the equation by 0.3

Calculate

Hope this helps...
Best regards!!
Answer:
Step-by-step explanation:
L1 -x + 2y = -1
L2 5x - 10y = 6
-x + 2y = - 1 multiply by -1
x - 2y = 1 multiply by 5
5x - 10y = 5 is similar that 5x - 10y = 6
The system has no solution
Alexa has read 3/8 chapters, while Rose has read 3/6, or 1/2, meaning that Rose has read more pages than Alexa.