Answer:
sorry i dont under stand it either would it be ok if i repost this
You can do 12/72 = 9/x. You cross multiply and it becomes 12x = 648. Divide 648 by 12, and x equals 54.
Answer:
7a - 21 + 28b
Step-by-step explanation:
using the distributive property we can multiply 7 to the numbers in the paretheses. doing this we get:
7a - 21 + 28b
Answer:
When choosing "r" things from a larger set of "n" things, the formula is:
combinations = n ! / (r! * (n-r)!)
combinations = 5 * 4 * 3 * 2 * 1 = (2!) * (3!)
combinations = 5 * 4 * 3 * 2 * 1 = (2 * 6)
combinations = 5 * 2
combinations = 10
Step-by-step explanation:
3a = 34 + 17
a = 51/3 = 17
Plz replace the equal sign with less than sign