Answer:
Step-by-step explanation:
Step-by-step explanation:
collin is correct and incorrect at the same time. when you solve this, you start with adding like terms.
10x and -11x will be added together to be -1x, after we figure this out, we solve.
-1x+7<-20
-7 -7
-1x<-27
/-1 /-1
x<27
after you solve, you notice that x is less than 27. collin has the correct answer for solving the equation, but if were looking on a more technical note, he would be incorrect because he said the answer is 27, when the answer is actually less than 27. therefore, collin has solved the inequality correctly, but he has said the answer incorrectly
The width of a rectangle is going to be equal on both sides, as they’re parallel in a rectangular shape. We know the width is 86 yards, and we have two lots of these, therefore 86 multiplied by 2 is equal to 172 yards.
We still have two more sides, but once again, because this is a rectangle, those sides must be equal. Therefore if we subtract the 172 yards we know from the total perimeter of 438 yards we will end up with an answer of 266 yards. This figure is divided by two because we have a length on either side of the perimeter. Therefore the answer is 133 yards.
Hope this helps!
(2.75 g -2.699 g)/(2.699 g) * 100% = 1.89%
_____
Perhaps you can tell that the general formula is
.. (measured value - actual value)/(actual value) * 100% = % error
Y=5x would give them the money they earn after all the car washes. In order to calculate when they make a profit, you could use:
5x>75
So, you can divide 75 by 5 to get that they need to wash at least 15 cars to earn all the money they spent on setup, and to make a profit, they must wash more than that.
