Answer:
The price of the kilogram of cookies is $ 1.8
Step-by-step explanation:
Call x the price of the kilogram of candy and call y the price of kilogram of cookies
Then we know that
We also know that the price of kilogram of cookies is 1.40 dollars cheaper than the kilogram of candy
So
We solve this equation for x and then we substitute it in the first equation.
Answer:
30 mph
Step-by-step explanation:
train stopped after 520 miles
780 miles to go
stopped at 20 hours
stopped for 4 hours
34 hours used up...
26 hours left
780 miles to go
780 miles/26 hrs = 30 m/hr
22 - 4x = -5, add 5 to both sides, add 4x to both sides
22 + 5 = 4x
27 = 4x
x =6.75
1 is 15
2 is 20
3 is 30
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The probability of getting an S on the first draw and then a T on the second draw is 2/12 if the bowl contains 9 marbles with letters on them.
<h3>What is probability?</h3>
It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words the probability is the number that shows the happening of the event.
Probability of getting letter an S:
P(S) = 3/9
Probability of getting letter an T:
P(T) = 2/8 (without replacement)
P(S, T) = (3/9)(2/8)
P(S, T) = 6/72 = 2/12
Thus, the probability of getting an S on the first draw and then a T on the second draw is 2/12 if the bowl contains 9 marbles with letters on them.
Learn more about the probability here:
brainly.com/question/11234923
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