We observe that 20 is 4 more than twice 8. This suggests the time is 1 hour and the rates are
... scooter: 20 mi/h
... bicycle: 8 mi/h
_____
You can let b represent the rate of the bicycle in miles per hour. Then we have (for time in hours and distance in miles) ...
... time = distance/speed
... time = 20/(2b+4) = 8/b
... 20b = 8(2b+4) = 16b +32
... 4b = 32
... b = 8
The rate of the bicycle is 8 mph; that of the scooter is 2*8+4 = 20 mph.
Answer:
(x - 8)² = 14
Step-by-step explanation:
Given
x² - 16x + 26 = - 24 ( subtract 26 from both sides )
x² - 16x = - 50
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 8)x + 64 = - 50 + 64
(x - 8)² = 14
Answer:
Common ratio = 3/4
Step-by-step explanation:
The nth term of a geometric progression is given by
an = a1 . rn - 1
Where;
an = the nth term
a1 = the first term
r = common ratio
n = the number of terms in the series
Common ratio, r = the ratio of the second term to the first term
= a2 : a1
Given from the series,
a2 = 48
a1 = 64
Common ratio, r = 48 : 64
= 48/64 = 3/4
Answer:
i would say b
Step-by-step explanation:
Answer:
-3x + (6 - 6x) = 24
Step-by-step explanation:
can i get some cash here
3y = 3 - 3x
6y = 6 - 6x
