Y= {2,4,6,8,10,12,14,16,18,20}<br>
X={4,8,12,16,20,24,28,32,36,40}<br>
Find the difference Y-X
olganol [36]
Answer:
difference between Y-X = 2
Step-by-step explanation:
you can subtract 2-4 in Y and also in X 4-8
as the difference between 2 (2-4, 4-8) number would be 2. therefore difference is 2
Hope it have benefited u.
Answer:
40
Step-by-step explanation:
If you look at the ratios you can see the pattern of the first number being multiplied by 4 everytime. Therefore you must multiply 10 by 4.
Let's call one number x and one number y.
x/2=y
x+y=57
We can set these equations equal to each other to solve for the numbers by subtracting x from both sides of the second equation. Now the equations are:
y=-x+57 and x/2=y
Since both equations equal y, they are also equal to each other:
-x+57=x/2
First, multiply both sides by 2:
-2x+114=x
Add 2x to both sides.
114=3x
Divide both sides by 3.
38=x
One of the numbers is 38. Now, we can plug 38 in for x in either of the equations to solve for y:
(38)+y=57
Subtract 38 from both sides:
y=19
The two numbers are 38 and 19.
I hope this helps :)
5x-8< -18
+8 on both sides
5x< -10
X< -2
