Answer:
18
Step-by-step explanation:
-74 --92 =
-74 + 92 =18
-56 --74
-56 + 74 = 18
-38 --56
-38+56 = 18
we are adding 18 each time
The common difference is 18
Answer:
14/18 = 0.778
Step-by-step explanation:
14 divided by 2 = 7
18 divided by 2 = 9
7/9 is the same as 7 divided by 9
= 0.778
2,100,000 millimeters
1 meter = 1000 <span>millimeters</span>
300 X 7 = 2100
7 days in a week
2100 X 1000 = 2,100,000
Answer:
x=9.2
Step-by-step explanation:
23/x=17.5/7
cross multiply
17.5x=161
divide
x=9.2
Answer:
x = 1
y = 6
Explanation:
The first given equation is:
-x + y = 5
Multiply this equation by -1, you will get:
x - y = -5 ............> I
The second given equation is:
4x + y = 10 ..........> II
Add the two equations I and II as follows:
x - y = -5
+ 4x + y = 10
..............................
5x = 5
Therefore:
x = 5/5
x = 1
Substitute with x in equation I to get y as follows:
x - y = -5
1 - y = -5
y = 1 + 5
y = 6
Hope this helps :)
