Answer:
3rd option
Step-by-step explanation:
- 1 ( 
)
- 1 is multiplying the complere fraction , not just 1 part of it , so
= -
Answer: 2/3 x +6
Step-by-step explanation:
slope is 2/3 and y intercept is 6
Answer:
The formula for the volume of a sphere is V = 4/3 πr³
Step-by-step explanation:
Answer:
MN = 6
This is because the shapes are dialations of each other
So PO and ML are the same side of the triangles but ML is dialated by a factor of 3.5 so that applies to the whole shape. So 21/3.5 = 6
Let the time he spent bicycling at 11 mph be x and the time spent bicycling at 15 mph be y, then
x + y = 60 . . . (1)
7x + 11.75y = 600 . . . (2)
(2) x 7 => 7x + 7y = 420 . . . (3)
(2) - (3) => 4.75y = 180
y = 180 / 4.75 = 38
x = 60 - 38 = 22
Therefore, he should bicycle 22 minutes at 11 mph and 38 minutes at 15 mph.
