It takes Andre 1.25 minutes to swim a lap.
Step-by-step explanation:
Short Answers
P(Both) = 0.1792
Givens
The total number of roles = 100
Total number of heads = 56
Number of times rolled a four = 32 [check this for me].
Set up the probabilities.
P(H) = 56/100
P(4) = 32/100
P(H)*P(4) = P(Both)
Substitute and solve
P(Both) = 56/100 * 32/100 = 1792/10000
P(Both) = 112/625 because there are many cancellations. Or you could just express it as 0.1972
Answer:
747
Step-by-step explanation:
let the 2 numbers be x and y with x > y, then
x - y = 275 ( the difference of the 2 numbers ) and
x - 236 = 275 ( the smaller number y = 236 )
Add 236 to both sides
x = 511
Thus x = 511 and y = 236, thus
x + y = 511 + 236 = 747
Answer:
E155
Step-by-step explanation:
Answer:
50°
Step-by-step explanation:
x+15+2x=90
3x=90-15=75
x=75/3=25
one acute angle=25+15=40°
other acute angle=2×25=50°