Answer:
y=5/41x
Step-by-step explanation:
Alright, so we can get imagine two points. Imagine that the y axis is miles and the x axis is minutes. When bianca runs 0 miles, she would have run for 0 minutes, and we know that when Bianca runs 5 miles, she would have run for 41 minutes.
We can use slope formula using the change in y over change in x
So substituting values, we would get (5-0)/(41-0) or 5/41
slope is the letter m in the formula y=mx+b
so our equation would be , b being the y intercept, which would be 0 as you cant run anything when no time has passed
Knowing all of this. the final equation is
Answer:
$18.02
Step-by-step explanation:
25 is the original price
25 times .2(20%) means you get a $5 discount, then you have a price of $20 for the item. Multiply that by .15(15%) for an additional discount of $3, making the item $17 now. 17 times .06(6%) gives you the tax of 1.02, and add that to the item price and you get a total of $18.02
Take the cos-1 of both sides to get 3x=30 then divide by 3 to get ×=10
4=3.5t and 4=4t
1.14=t and 1=t both decide by two
Amanda 37min and Alexis 30min to meet in the middle
Answer:
11.2
Step-by-step explanation:
x is the length of a radius of the circle, all radii have the same length.
the chord of length 20 is perpendicular to the segment of length 5, so the segment bisects the chord , so half of the chord is length 10.
The segment of length 10 is one leg of a right triangle while the segment of length 5 is the other leg. The hypotenuse is also a radius of the circle.
The length of the hypotenuse can be found by they Pythagorean Theorem, a^2 + b^2 = c^2, so
5^2 + 10^2 = c^2 or
25 + 100 = c^2 or
c^2 = 125 or
c = = ≈ 11.2
so if one radius is approximately 11.2, then all radii (including the one of length x) are 11.2