Answer:
1 hour and 20 minutes
Step-by-step explanation:
6mph= 6 miles every hour
1 mile = 10 minutes
2 miles = 20 minutes
8 miles = 1 hour and 20 minutes
Answer:
Step-by-step explanation:
y = 2x - 1
y = x - 8 ------ (i)
substitute y = 2x - 1 in equation (i)
2x - 1 = x - 8
2x = x - 8 + 1
2x = x - 7
2x - x = -7
x = -7
Substitute x value in equation (i)
y = -7 - 8
y = -15
Answer:
0.66
Step-by-step explanation:
The exponential growth equation is expressed as;
S(t) = S0e^kt
S(t) is the number of stores after t years
S0 is the initial number of stores
If a chain of retail computer stores opened 2 stores in its first year of operation then at t = 1, S(t) = 2. Substitute into the equation;
2 = S0e^k(1)
2 = S0e^k .... 1
Also if after 8 years of operation, the chain consisted of 206 stores, this means at t = 8, S(t) = 206. Substitute into the equation;
206 = S0e^k(1)
206 = S0e^8k .... 2
Next is to calculate the value of k
Divide equation 2 by 1;
![\frac{206}{2} = \frac{S0e^{8k} }{S0e^k }\\103 = e^{7k}\\apply \ ln \ to \ both \ sides\\ln103 = lne^{7k}\\ln103 = 7k\\k = \frac{ln103}{7}\\k = \frac{4.6347}{7} \\k = 0.6621](https://tex.z-dn.net/?f=%5Cfrac%7B206%7D%7B2%7D%20%3D%20%5Cfrac%7BS0e%5E%7B8k%7D%20%7D%7BS0e%5Ek%20%7D%5C%5C103%20%3D%20%20%20e%5E%7B7k%7D%5C%5Capply%20%5C%20ln%20%5C%20to%20%5C%20both%20%5C%20sides%5C%5Cln103%20%3D%20lne%5E%7B7k%7D%5C%5Cln103%20%3D%207k%5C%5Ck%20%3D%20%5Cfrac%7Bln103%7D%7B7%7D%5C%5Ck%20%3D%20%5Cfrac%7B4.6347%7D%7B7%7D%20%5C%5Ck%20%3D%20%200.6621)
Hence the value of k to the nearest hundredth is 0.66
Answer:
10
Step-by-step explanation:
46 - [(9 + 15 ÷ 5) × 3]
~We can simplify everythingusing PEMDAS
46 - [(9 + 3) × 3]
46 - [(12) × 3]
46 - 36
10
Best of Luck!
Answer: 26
Step-by-step explanation:
32-6 = 26