Answer:
son age: X
man_age= 5X
in 3 years: we have: (man_age+3)(X+3)=380
we can replace the man age by 5X and we get :
(5X+3)(X+3)=380
it is a quadratic equation with 2 solutions. One negative and 7
The solution is thus 7, since age can not be negative.
The son is thus 7 and the dad 5 times more 35
Step-by-step explanation:
Answer:
B)41.2
C)0.736
D)6.132
Step-by-step explanation:
B) 412/10=41.2
C)73.6/100=0.736
D)6132/1000=6.132
hope this helps
The odds of picking a single card out of 52 is:
1/52
The odds of picking an Ace is:
4/52 (since there are 4 aces in a single deck)
The odds of picking an ace or a king is:
8/52 (since there are 4 aces and 4 kings in a single deck, 4+4=8_
8/52 can be simplified to 2/13
Answer=2/13
Answer:
A.
Step-by-step explanation:
To check if a graph is a function, use the vertical line test. Use a ruler or straight edge, or simply imagine a vertical line. Move the line across the graph. The line should only intersect the graph at one point at any time.
B isn't a function because the line intersects the graph at two places (when x = 0).
C isn't a function because the line intersects the graph at two places (between x = -1 and x = 1).
D isn't a function because the line intersects the graph at two places (when x < -1 and when x > 1).
Only A is a function.
Answer:
1:4
Step-by-step explanation:
