Answer:
24x = 8*60
24x = 480
x = 20
Step-by-step explanation:
Answer:
4.3 *10^3
Step-by-step explanation:
The width is 1/3 of the length. You can tell that off of the ratio.
To find the perimeter of a rectangle, you have to use the equation:
2L+2W=136
W=1/3L; We can plug that in for W.
2L+2(1/3L)=136
2L+2/3L=136
2 2/3L=136
136÷2 2/3= 51=L
The length is 51 ft. We need to make sure by finding the width and making sure the perimeter is equal to 136.
3:1
51:17
The width is 17 ft. 17+17+51+51
34+102=136
So, the length is 51 ft.
Answer:
10.63
Step-by-step explanation:
The distance between two points is sqrt((difference between y-values)^2 + (difference between x-values)^2) -->
sqrt(8^2 + 7^2) =
sqrt(64 + 49) =
sqrt( 113) =
10.630145 -->
10.63
Answer:
t = 1 3/7 hours
Step-by-step explanation:
For plane 1
distance = rate *t
d1 = 40 *t
For plane 2
distance = rate * time
d2 = 100 * t
We know that d1+d2 = 200 (the planes will meet)
We know that the times will be the same because the leave at the same time.
Substitute in d1 =40t and d2 = 100t into d1+d2 = 200
d1+d2 = 200
40t + 100t = 200
Combine like terms
140t = 200
Divide each side by 140
140t/140 = 200/140
t= 200/140
t= 20/14
t = 10/7
t = 1 3/7 hours