Answer:
The statement
the product of 60 and the number of seconds is written as
60 * s
Hope this helps you
80 - [50 - {20/2 - (16 - 2/2) ÷ 3}]
80 - [50 - {20/2 - (15) ÷ 3}]
80 - [50 - {10 - 5}]
80 - [50 - {5}]
80 - [45]
35
I) X+Y
when X=0
0+y=5
Y=5
When Y=0
X+0=5
X=5
(X,y)=(5,5)
(ii) X-Y=3
When X=0
0-Y=3
Y=-3
X-0=3
X=3
(X,Y)=(3,3(
(III) 2x+Y=7
0+Y=7
Y=7
when Y=0
2x+0=7
2x=7
X=7/2 or 3.5
(X,Y)=(3.5,7)
(Iv)
3X-2Y=0
0-2Y=0
-2Y=0
Y=0
3x-0=0
3X=0
X=0
(X,Y)=(0,0)
