If you are asking if 4(x+5) would equal to 5x+20.Your answer would be false because 4 times x equals 4x and 4 times 5 equals 20.
<span>Simplifying
y = 20x + 500
Reorder the terms:
y = 500 + 20x
Solving
y = 500 + 20x
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Simplifying
y = 500 + 20x</span>
1.correct
2.correct
3.correct but put 37.5% instead
4.correct
5.correct but again 37.5
B, because it is close to -3 and in between -4 and -3
Before we do anything, we need to find out how fast we are going in the first place.
We know we are going 1.5 miles per minute and that there are 60 minutes in an hour, so we can find our speed in mph. All we have to do is multiply 60 and 1.5.
That gives us 90 mph.
Next, the problem says that we reduce our speed by 15 mph, so you would subtract 15 from 90.
That gives us 75 mph.
The last thing the problem says is that we reduce our speed by one third, so first we need to know what one third of 75 is. We can find that by dividing 75 by 3.
That gives us 25
But we aren't finished yet! We still need to subtract 25 from 75 to get our current speed. When we do this we get our final answer of...
50 mph
If you need any further explanation, just let me know!