Percent change = change/original * 100
(2.65 - 2.30)/ 2.65 * 100
.35/2.65 * 100
13.2 % decrease
-13.2% if you need to write is as a negative
Answer:
B) 78
Step-by-step explanation:
The two lines we are going to want to pay attention to for this problem are line S and line Q. ALWAYS remember that a line adds up to 180 degrees. This means that when we find x, we know that 57 + x + another number equals 180, because they are all angles on line S.
So, all we need to do is find this "other number". We can do this by looking at line Q. Again, since all lines add up to 180, the other angle on line Q must be 45 degrees, because 135 and 45 add up to 180. And now we know our "other number", its 45!
But how do we know the "other number" is 45? Well, its because the lines that creat these angles are both parallel (line S and line R) and have the same line crossing them (line Q).
Now we can finish our problem. We should get 57 + x + 45 = 180. This then gives us x = 78.
10 1/5 = 10.2
10.2 - 15.5= -5.3
Answer:
(-6/7)^0=1
-(2)^0=-1
Step-by-step explanation:
hope it helped
can I have a brainliest please i really need that
For this question, personally, I would do it algebraically.
So set m to the number of months until they will have the same amount of money. Then you can write an equation matching this scenario, and solve for m as well.
So first, write the side of the equation for Sarah.
She originally had $400, and each month pays $15.
So 400 - 15m for subtracting how much she pays in total, 15m, from her total amount of money, $400.
Now, write the side of the equation for Draius.
He originally had $50, and he gets $20 each month.
So the equation would be 50 + 20m, for how much he gets in total adding to $50.
Now set the two equal.
400 - 15m = 50 + 20m
Now, move all like terms to opposite sides by using opposite operations.
Subtract 50 from both sides:
400 - 50 - 15m = 50 - 50 + 20m
350 - 15m = 20m
Now add 15m to both sides.
350 - 15m + 15m = 20m + 15m
350 = 35m
Divide both sides by 35:
350/35 = 35m/35
m = 10
So Sarah and Darius will have the same amount of money in 10 months.
Now you can plug 10 into the equation to find out how much money they both have.
I'll just plug it in for 400 - 15m:
400 - 15 (10)
= 400 - 150
= 250
And since they'll both have the same amount of money, they'll both have $250.
