What number are we going to compare bro?
I'm assuming that you meant to write 'two 100-w per hour light bulbs used a total of 400w. how many hours did the bulbs run'
so each used 100w per hour and there are 2 light bulbs so in 1 hour 200w is used
200wh times x hour=200wx=400w
divide both sides by 200w
x=2
they ran for 2 hours
Answer:
Step-by-step explanation:
If we call x the number of correct questions obtained in the 9 attempts, then:
x is a discrete random variable that can be modeled by a binomial probability distribution p, with n = 9 trials.
So, the p of x successes has the following formula.
Where:
n = 9
p = 0.6
We are looking for P(x<4)
By definition:
Then:
Answer:
Step 1: Divide 300 by 200 to get the number as a decimal. 300 / 200 = 1.5
Step 2: Multiply 1.5 by 100. 1.5 times 100 = 150. That's all there is to it!
Note that you can reverse steps 1 and 2 and still come to the same solution. If you multiply 300 by 100 and then divide the result by 200, you will still come to 150!
Step-by-step explanation:
hope it helps
Answer: it’s d
Step-by-step explanation: i did that
