No they are not
scientific notation requires writing the ' × 10^9' part as a 10 with an exponent
When u add it stays the same but for subtraction u change the sign.
Example: 2- (-5)=7
Answer:
23
Step-by-step explanation:
Answer:
C) The song shop
Step-by-step explanation:
Divide all prices by the amount of songs purchased. example: 7.92/6=1.32
Let the slower cars speed equal X.
The faster cars speed would be X+5 ( 5 mph faster).
They traveled for 3 hours
Multiply the time of travel by speed to equal the number of miles traveled.
So you have:
3X + 3(X+5) = 267 miles
Simplify the left side:
3X + 3X+15 = 267
Combine like terms:
6x + 15 = 267
Subtract 15 from each side"
6x = 252
Divide each side by 6:
x = 252 / 6
X = 42
The slower car was traveling at 42 mph and the faster car was traveling at 47 mph.
