Practically anything above -8
Such as -7, 2, 15600, anything not under -7.9
Answer:
-4 3/4, -4 1/2, -4 1/4
Step-by-step explanation:
Answer:
430 billion (430,000,000,000) is 4.3 x 10^11 in scientific notation
3y = 5x + 30
y + 5x = 50 .......(1)
3y - 5x = 30 .....(2) - rearranging the first equation.
Add (1) and (2):-
4y = 80
y = 20
Now plug y = 20 into equation (1):-
20 + 5x = 50
5x = 30
x = 6
The 2 numbers are 6 and 20.