Answer:
The plan A lasts 1.25 hours and plan B lasts 0.5 hours.
Step-by-step explanation:
Let the plan A takes x hours for training and plan B takes y hours for training.
So, from the conditions given we can write two different equations as
4x + 8y = 9 ............ (1) and
2x + 3y = 4 ............. (2)
Now. solving equations (1) and (2) we get,
8y - 6y = 9 - 8
⇒ 2y = 1
⇒ y = 0.5 hours.
Now, from equation (2) we get,
2x = 4 - 3 × 0.5 = 2.5
⇒ x = 1.25 hours.
Therefore, plan A lasts 1.25 hours and plan B lasts 0.5 hours. (Answer)
A and D are your answers.
They have an Infinite number of solutions because when the equations are put into slope-intercept form (y=mx+b), they end up having the same slope (m) and the same y-intercept (b).
Answer:
Your answer will be 567
Step-by-step explanation:
5 / 45 = 9 x 63 = 567
I hope this helps
Have a nice day/night
Mark brainiest, please
:)
Answer:
and 
Step-by-step explanation:
The first answer you are just adding 4 and 1/4. The second answer you are adding a negative number with a postive fraction so you get a negative fraction.
Answer:
<u>Given equations</u>: y = 3x² + x - 6; y = x - 4
So, Plug the value of value of y in other equation
- 3x² + x - 6 = x - 4
- 3x² + x - x - 6 + 4 = 0
- 3x² - 2 = 0
- 3x² = 2
- x² = 2/3
- x = √2/3
