Answer:
thanks isn't that what were on
Step-by-step explanation:
|5 - 7| = |-2| = 2
|12.4 - 16.1| = | -3.7| = 3.7
-2 x 7 = -14
Taking the point directly under the center of the bridge as the origin,
x = 20t, y = 15t, z = 10
let s be thedistance between them at time t,
s^2 = (20t)^2 + (15t)^2 + 10^2 = 625t^2 + 100
2s ds/dt = 1250t
ds/dt = 625t/s
when t = 3, s = √(625*9+100) = 75.6637
ds/dt = 625*3/75.6637 = 24.78 m/s
Answer:
a. 2n = 3n − 12, 12
Step-by-step explanation:
Let the number be represented by n.
Then 2 times the number is 2*n = 2n
3 times the number = 3*n = 3n
12 minus 3 times the number is 3n-12
It is given that 2 times the number is the same as 12 minus 3 times the number.
Expressing this equation form:
![\[2n=3n-12\]](https://tex.z-dn.net/?f=%5C%5B2n%3D3n-12%5C%5D)
Solving the equation,
![\[3n-2n=12\]](https://tex.z-dn.net/?f=%5C%5B3n-2n%3D12%5C%5D)
![\[=> n=12\]](https://tex.z-dn.net/?f=%5C%5B%3D%3E%20n%3D12%5C%5D)
Hence the required number is 12.
Answer:
5 units were bought
Step-by-step explanation:
Firstly, let us calculate the total amount paid
If what was paid was $9.45, this cost includes the price of the coupon subtracted
Returning the coupon price, we have the total as;
9.45 + 0.5 = $9.95
So to get the number bought, we divide this total by the price for one
We have this as;
9.95/1.99 = 5
