Answer:
Courtney's walking speed = 3.33mph
Brandi's walking speed = 4.33 mph
Step-by-step explanation:
Let x = Courtney's walking speed
then
(x + 1) = Brandi's walking speed
:
Time = Distance/speed
Brandi walks 6.5 mi time = Courtney walks 5 mi time
6.5/x + 1 = 5/x
Cross multiply
6.5x= 5(x+1)
6.5x= 5x + 5
6.5x - 5x = 5
1.5x = 5
x = 5/1.5
x = 3.33 mph is Courtney's walking speed
Note that:
(x + 1) = Brandi's walking speed
3.33mph + 1 = 4.33mph
Therefore,
Courtney's walking speed = 3.33mph
Brandi's walking speed = 4.33 mph
Answer:
Domain is (8,7,6,5) and Range is (7,7,7,7)
Answer:
a = 1, b = 0 & c = -1;
a = 1, b = 2 & c = 3
Step-by-step explanation:
a = 1, b = 0 & c = -1;
so a + b + c = 1 + 0 + (-1) = 0
&
1 x 0 x (-1) = 0
Other possible answers;
a = 1, b = 2 & c = 3
Answer:
900
Step-by-step explanation:
With a $6000 yearly premium and a $5000 deductible the break-even point would be 300 surgeries per year from a sample of 1000 insured people. Over 3 years that would equate to 900 surgeries.
$6000 x 1000 = $6000000
requiring surgery : $25000 - $5000 = $20000
Therefore $600000/$20000 = 300 claims per year
And 3 years x 300 = 900 claims over 3 years.
