His 2 choices are 5x-15+4=18 and 5(x-3)=14
THE ANSWER IS D
YOU HAVE AT TIME ZERO 10 BACTERIA,
AFTER 15 SEC YOU HAVE 20 BACT
AFTER 30 SEC THE NUMBER DOUBLES SO YOU HAVE 40 BACT
AFTER 45 SEC YOU YOU HAVE 80
AND SO ON, AFTER 120 SEC YOU HAVE 2560 BACT
Answer:
4
Step-by-step explanation:
Make the 10% a decimal
.10
Then multiply it by 40
.10*40
You get 4
Answer:
I believe it might be 30 or 1.2
Step-by-step explanation:
It would've been 6/30 but since is it says it's a whole number you would have to add all the numbers together to get how many marbles you have in all.
I hope this is right, if it's not I'm sorry!