To mountains took 9 Hrs at x mph where x = No of miles to mountains
No of miles travelled = 9x
From mountains took 4 hours at (x+40) mph
No of miles travelled = 4(x+40)
Therefore 9x=4(x+40) thus 9x=4x+160 thus x=32 = distance Charmaine lives from the mountains
Each is a half of an apple, and there are 8 apples.
A factor is what you multiply.
So since there are 8 halves, you would do 8 x 1/2.
The answer to that equation is 4.
So that's how you get your answer, I hope this helps!
You need to use pythagorean’s theorem. so a^2+b^2=c^2.
in this case it would be 6^2+8^2=c2
36+64=100
the square root of 100 is 10
x=10
The answer is the third option, which is:
<span> y = x^2 + 5x + 3
6x + y = −27
The explanation is shown below:
1. When you solve this problem you have the following solution:
x=-6
y=9
x=-5
y=3
2. As you can see the solution corresponds with the graph shown above.
3. You can give value to the variable x of the first equation and values to the x of the second equation, and plot each point obtain. You will see that the parabola and the line, touch each other at the points (-5,3) and (-6,9)</span>
