The answer you are looking for is X=-9 y=6 I believe
<span>a- 2.2n+4 .......answer
</span>
Formula: V = d / t => d = V*t
Name your relevant variables:
minimum speed limit: v
maximmum speed limit V
1) Tony's distance
2*v + 3.5*V = 355 miles
2) Ray's distance
2*v + 3*V = 300 miles
3) Finding v and V
You have a system of two equations each with the two variables.
You can solve that system by subtracting the second equation from the first one:
=> 0.5V = 55 => V = 55 / 0.5 = 110 mph
Now replace that value of V in any of the equations and solve for v
From the second one: 2v + 3V = 300 => 2v = 300 - 3V = 300 - 3(110) = 300 - 330 = - 30 mph
This value of v indicates that the conditions given are not valid. Both speed should be a positive value.
=> Tony's distance is 2*80 + 3.5*110 = 160 +
good morning,
Answer:
10×(1-0.2ⁿ)
Step-by-step explanation:
1.6/8=0.2
0.32/1.6=0.2
0.064/0.32=0.2
let S represent the sum of n term then S=8×[(1-0.2ⁿ)/(1-0.2)] = 10×(1-0.2ⁿ).
:)