Answer:24
Step-by-step explanation:
Answer:
i believe its 110mm
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
18 . ( 14 - 9 ) ÷ [ 12 - ( 19 - 13 ) ]
18 . ( 5 ) ÷ [ 12 - 6 ]
90 ÷ 6
15
Answer:
x=2.5
y= -7
Step-by-step explanation:
1.)make y the subject of any equation
4x-y=17
-y=17 -4x
y = -17 + 4x
2.)substitute it in the next equation
-2x + 3(-17 + 4x)= -26
-2x -51 + 12x = -26
-2x + 12x - 51= -26
10x -51= -26
10x = 25
x = 2.5
3.) substitute the x- value into any equation
4x -y = 17
4(2.5)- y = 17
10 - y =17
-y = 7
y = -7