Simply it as follows:
1 + 39 = 40
2 + 38 = 40 etc
18 + 22 = 40
19 + 21 = 40
There are 19 of these plus 40 itself . . .therefore 20 of them
20 x 40 = 800
And finally the last number not used, 20
Therefore 800 + 20 = 820
Answer:Mixed number = a whole number and a proper fraction, of the same sign.
Proper fraction = numerator smaller than denominator.
35 ÷ 2 = 17 and remainder = 1 =>
35 = 17 × 2 + 1 =>
35/2 =
(17 × 2 + 1) / 2 =
17 + 1/2 =
17 1/2
Step-by-step explanation:
I'm assuming this is what they want? haha
Answer:
3x+6=8x-49,
-6. -6
__________
3x=8x-55
-8x. -8x
________
-5x=-55
x=11,
3(11)+6=39
8(11)-49=39
Step-by-step explanation:
