Answer:
ummmmmm peace out
Step-by-step explanation:
Answer:
15cm
Step-by-step explanation:
scale factor =image diatace/object distance
0.75=x/20
0.75×20=x
15=x
: .x=15cm
Answer:
hi
Step-by-step explanation:
y=3x+24
y-3x=24
y-x= 24/3= 8
y-x = 8
2.
6x +6y= -24
6x+y= -24/6= -4
6x+y= -4
x+y= -4/6= -2/3
x+y= -2/3
Answer:
It is divisible by 11 and (a + b) !
Step-by-step explanation:
Given a two digit number
, the digits written in reverse order is
.
Note that a two digit number ab = 10a + b.
For example: 24 = 10(2) + 4
Similarly, ba = 10(b) + a
Now, the sum of the numbers ab and ba = 10a + b + 10b + a
= 11a + 11b
= 11(a + b)
Hence, the sum of any two digit number ab and the reverse of the number ba, is divisible by 11 and (a + b).
Hence, proved.