Anna's age is A
Courtney's age is C
A=2C+6
You get this because it says that Anna is twice Courtney's age so you multiply Courtney's age by 2. Then it says that she is 6 more which is why you add six after you multiply by 2.
So your equation is
A=2C+6
Answer:
8 and 9
Step-by-step explanation:
Let the two consecutive integers be x - 1 and x
Smaller = x-1
Largere = x
If the square of the smaller integer is nineteen more than five times the larger integer, then;
(x-1)² = 19 + 5x
Expand
x²-2x+1= 19+5x
x²-2x-5x+1-19 -0
x²-7x-18 =0
Factorize
x²-9x+2x-18 =0
x(x-9)+2(x-9) = 0
(x+2) = 0 and x - 9 = 0
x = -2 and 9
SInce x cannot be negative;
x = 9
Smaller number = 9-1
Smaller number = 8
Hence the two consecutive integers are 8 and 9
Answer:
<u>1. New York City:</u> The initial charge is $ 2.50 plus $ 0.50 per 1/5 mile when traveling above 12 mph or per 60 seconds in slow traffic or when the vehicle is stopped. There are other surcharges for overnight, rush hour or congestion.
<u>2. Boston:</u> First 1/7 Mile: $2.60 and each 1/7 Mile thereafter: $0.40.
<u>3. Houston:</u> First 1/11 mile $2.80
, each additional 1/11 mile $0.20
. Rate per mile after first mile $2.20 and wait time per minute $0.40.
Step-by-step explanation:
Normally, there's a standard fare for each city, so for answering the question we picked three well-known cities for comparing the fares.
<u>1. New York City:</u> The initial charge is $ 2.50 plus $ 0.50 per 1/5 mile when traveling above 12 mph or per 60 seconds in slow traffic or when the vehicle is stopped. There are other surcharges for overnight, rush hour or congestion.
<u>2. Boston:</u> First 1/7 Mile: $2.60 and each 1/7 Mile thereafter: $0.40.
<u>3. Houston:</u> First 1/11 mile $2.80
, each additional 1/11 mile $0.20
. Rate per mile after first mile $2.20 and wait time per minute $0.40.
Answer:
(1.2×3)500
Step-by-step explanation:
the 1.2 factor will be multiplied by the hours given then times that by the starting amount of bacteria.
