Answer:
2 hours: 27 miles, 3 hours: 40.5 miles, 3.5 hours: 47.25 miles
Step-by-step explanation:
1.) If a hiker hikes 9 miles in 2/3 of an hour, he will hike 4.5 (Half of 2/3 is 1/3 and half of 9 is 4.5) miles in 1/3 of an hour and 13.5 miles per hour. (1/3 times 3 gives us a whole and 4.5 times 3 is 13.5)
2.) 2 hours: 13.5 * 2 = 27 miles
3.) 3 hours: 13.5 * 3 = 40.5 miles
4.) 3.5 hours: 13.5 * 3.5 = 47.25 miles
Answer:
x = 110°
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 6, thus
sum = 180° × 4 = 720°
Sum the given angles and equate to 720
125 + x + 130 + 90 + 165 + 100 = 720, that is
610 + x = 720 ( subtract 610 from both sides )
x = 110°
Answer:
-1.5x + 3
Step-by-step explanation:
The Y-intercept is visible, wherever the line is touching the Y-Axes is the intercept. Use this formula to solve for slope:
Answer:
143 im pretty sure
Step-by-step explanation:
Answer:
C = - 21 -6x
Step-by-step explanation:
6x + 12y = 15 (1)
- 6 + 2y = C (2)
multiply equation (2) by 6
- 36 + 12y = C (3)
subtract equation (1) from equation (3)
- 36 + 12y = C
6x + 12y = 15
___________
- 36 - 6x = C - 15
now we collect the terms (make C by itself)
- 36 + 15 - 6x = C (to do this we add 15 to both sides)
- 21 -6x = C
That's about as much as you can simplify it.
Hope this helps,
Cate
