Answer:
es esto correcto? 25?
Step-by-step explanation:
Answer:
140 miles
Step-by-step explanation:
Let
Number of miles = m
Total cost = fixed cost + variable cost
Company A = $150 + $0.40m
Company B = $80 + $0.90m
Equate company A and company B equation
Company A = Company B
$150 + $0.40m = $80 + $0.90m
Collect like terms
150 - 80 = 0.90m - 0.40m
70 = 0.50m
m = 70 / 0.50
= 140
m = 140 miles
The number of miles in a day at which the rental costs for Company A and Company B are the same is 140 miles

Multiply both sides of the equation by 5

Move the expression to the right side and change the sign

Combine Like terms

So I think the final answer would be k=-15-15k
Answer:
The principle amount = $4000
Step-by-step explanation:
Formula:
Simple interest I = PTR/100
P - Principle amount
T - Number of years
R - Rate of interest
<u>To find principle amount</u>
Here , P = ?, T = 2 years, R = 5.9% and p + I = $4472
I = PTR/100
P + (P*2**5.9)/100 = 4472
P[1 + 11.8/100] = 4472
P[111.8/100] = 4472
P = (4472*100)/111.8 = 4000
Therefore the principle amount P = $4000