Answer:
x=10, y=5
Step-by-step explanation:
For substitution, you always want to get the variable alone. The second equation (x-2y=0) will be easier to substitute into the first equation.
x-2y=0
x=2y
You can substitute 2y as x on the first equation (x+4y=30).
2y+4y=30
6y=30
y=5
Plug y=5 into any equation.
x+4(5)=30
x+20=30
x=10
Answer:
D) 0.51, and do the homework
Step-by-step explanation:
First, we have the event "Probability of give a pop quiz" and event 2 "Probability of not doing homework".
The soccer game, and the pop quiz are not related, which means that the outcome of one or another event, will not affect the fact of the soccer game to be realized, so these 2 previous events are independent events, you can either have the quiz and not doing the homework, or even not have the quiz but still do the homework, the result of one will not affect the outcome of the other, hence:
P(A∩B) = P(A) * P(B)
Replacing the data we have:
P(A∩B) = 0.6 * 0.85
P(A∩B) = 0.51 or 51%
This result is lower than 80%, therefore, you'll do the homework
Answer:
290/80=3.625 cm
Step-by-step explanation:
you divide the total miles by how many miles a cm represents to find out how many cm apart tge cities are on the map.
Answer:
B is the correct answer.
Step-by-step explanation:
B has all terms of x.
