We assume you mean
This is solved by writing 16 as a power of 4 and equating exponents.
2 = 3x - 7 . . . . . equate exponents
9 = 3x . . . . . add 7
3 = x . . . . . divide by 3
The solution is x = 3.
Answer:
=800 km
Step-by-step explanation:
Let the distance traveled by train be y and by bus be x.
Bus -x
Train -y
y=x+150 (since they traveled by train for a distance of 150 km more than by bus.)
The sum of the two is equal to 1450
x+y=1450
y=x+150
These two form simultaneous equations.
y+x=1450..............i
y-x=150.................ii
Adding ii to i gives:
2y=1600
Divide both sides by two
y=800
Distance traveled by train =y=800 km
Answer:
X=13
Step-by-step explanation:
110+ X+57=180
X+ 167= 180
X=180-167
X=13
The conditional probability that an adult who lifts weights regularly, also runs regularly is 0.219 or 21.9% if the 18% lift weights regularly, 32% run regularly, and 7% lift weights and run regularly.
<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.
Let's suppose P(A) is the probability of adults who lift weights regularly.
P(A) = 18% = 0.18
Similarly,
P(B) = 32% = 0.32
P(A∩B) = 0.07
We know:
P(A|B) = 0.219 or
P(A|B) = 21.9%
Thus, the conditional probability that an adult who lifts weights regularly, also runs regularly is 0.219 or 21.9% if the 18% lift weights regularly, 32% run regularly, and 7% lift weights and run regularly.
Learn more about the probability here:
brainly.com/question/11234923
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Answer: 4200
Step-by-step explanation: