D=rt
distance = rate*time
rate=15mph
time=3.5hours
distance = 15*3.5 = 52.5
He will travel 52.5 miles in 3.5 hours assuming his rate does not change.
Well there is no exact answer
Answer:
small number = -3
large number = 12
Step-by-step explanation:
Suppose two numbers are x and y
smaller number = x
larger number = y
Given that,
The difference of two numbers is 15
<h2>Equation 1</h2><h3>y - x = 15</h3>
Five times the smaller is the same as 9 less than twice the larger.
<h2>Equation 2</h2><h3>5x = 9 - 2y</h3>
Solve them
-x = 15 - y
x = y -15
put value of x in equation 2
5(y - 15) = 9 - 2y
-75 + 5y = 9 - 2y
-75 - 9 = -2y - 5y
-84 = -7y
y = 84/7
y = 12
x = 12 - 15
x = -3
Answer:
The answer is 120
Step-by-step explanation:
Answer:
P(E or F)=P(E)+P(F)=0.41+0.47=0.88
