Answer:
x
≈
1.90206634
Step-by-step explanation:
3
(
12
x
−
16
)
=
4
(
12
−
x
3
)
Simplify
3
(
12
x
−
16
)
.
36
x
−
48
=
4
(
12
−
x
3
)
Simplify
4
(
12
−
x
3
)
.
36
x
−
48
=
48
−
4
x
3
First find out how fast they run 1 mile by dividing the time they ram ( 30 minutes) by the number of miles they ran (4)
30 minutes / 4 miles = 7.5 minutes per mile
now we know how fast they run divide the new overall time (48 minutes) by the speed (7.5 minutes) to find the number of miles they will run
48 / 7.5 = 6.4 miles
Answer:
d = √149 = 12.2
Step-by-step explanation:
Distance between 2 coordinates: d = √[(x2 − x1)^2 + (y2 - y1)^2]
d = √[(0 - 7)^2 + (2 - -8)^2]
d = √[(-7)^2 + (10)^2]
d = √[49 + 100]
d = √149 = 12.2
Zero, because ANYTHING to the power of zero equals 1.
Answer:
10 sides (decagon)
Step-by-step explanation:
You find the perimeter by adding up all the sides of a shape.
side + side + side + side... = perimeter
You know that <em>each</em> side is 4/5 centimeters. You also know that the perimeter is 8 centimeters.
<u>You can set up an equation like this:</u>
4/5 * number of sides = 8
<em>or you can write it in a simpler form as:</em>
4/5x=8
<u>Now solve it like a normal equation:</u>
5 * (4/5x) = (8) * 5
(4x) / 4=(40) / 4
x = 10
So, you know the shape has 10 sides that are 4/5 centimeters each.
