Answer:
7.5
Step-by-step explanation:
Lets define what we're looking for, the "number", to be equal to x.
number = x
Following the questions hints:
" The sum of twice a number and three times a number"
(2x) + (3x)
is (which means equals to basically)
" triple the quantity of five more than a number"
3(x+5)
We connect all of this to find the number and get:
(2x) + (3x) = 3(x+5)
5x = 3x + 15
5x -3x = 15
2x = 15
x = 15/2
x = 7.5
If Ava has 34 candy bars, and each box can hold 5 bars, then we need to find out how many boxes that are filled up.
Divide the number of candy bars (34), by the number each box can hold (5)
Since we cannot have 6.8 boxes, we have to round down to 6.
To check our answer, we multiply the number of boxes (6), by the number of bars in each box (5), to get 30. We add Ava's extra bars (4), and we get the number we started off with: 34. This proves our answer is correct!
100 + 100 * 10/100 = 110
NOW 110 INCREASES BY 10 %, 110 + 110*10/100 = 110+ 11 = 121
INCREASE OF 20 % = 100 + 100*20/100= 100+20 = 120
SO IT IS NOT SAME
Unless refuted later in the equation, this statement would be True because they are normally giving you the data to work with to save you the time of finding it yourself.
Hey there! :D
Add the expression's together.
3x+y=27
-3x+4y= -42
3x+(-3x)= 0
y+4y=5y
27+(-42)= -15
5y=-15
Divide both sides by 5.
y=-3
Now, find x.
3x+y=27
3x-3= 27
3x=30
x=10
The solution is (10,-3).
I hope this helps!
~kaikers
