Answer:
Below is the sample response
Step-by-step explanation:
The complementary event for choosing a red marble is choosing a blue or purple. The total number of marbles is 5. The probability of choosing a red marble is 1/5, and the complement would be 4/5. That is not the same as choosing a blue marble.
Answer:
There is no image, but perpendicular lines are lines that will eventually intersect, if the lines are straight and not intersecting, then they are parallel.
Answer:
160 minutes.
Step-by-step explanation:
2 miles per 40 minutes for 8 miles
dived 8 by 2 and then multiple by 40
4/12=1/3
8/14=4/7
6/8=3/4
3/6=1/2
5/15=1/3
Answer:
A) 90
Step-by-step explanation:
"The sum of two integers is 23" becomes
a + b = 23
"the positive difference of the same two integers is 13" becomes
a - b = 13 (difference means subtract)
Now solve the system..
a + b = 23
a - b = 13 *use addition or elimination method, since b has opposite coefficients...
2a = 36 ( we add the two equations together)
a = 18 (divide by 2 on both sides)
Since a = 18, 18 + b = 23, gives us b = 5. (18 + 5 = 23)
ab = (18)(5) = 90
