X-5=x I'm sure it can be the correct
Answer:
7/15
Step-by-step explanation:
<em>No. of green marbles in the bag= 7</em>
<em>No. of blue marbles in the bag= 8</em>
<em>Total no. of marbles in the bag= 7+8=15</em>
As we know that,
Probability( of a random event A)= 
Hence in this case,
Favourable np. of elementary events (green marbles)=7
Total no. of elementary events (Total no. of marbles in the bag)= 15
Hence, Probability of picking a green marble from the bag=
Question 7: Answer J (7/8 - 1/2 = 3/8)
Answer:
Velocity of jet in still air is 970 miles per hour and velocity of wind is 210 miles per hour.
Step-by-step explanation:
Jet's velocity against wind is
3040/4 = 760 miles per hour and flying with wind it is
8260/7 = 1180 miles per hour.
Let the velocity of jet in still air be x miles per hour and velocity of wind be y miles per hour.
As such its velocity against wind is x − y and with wind is x + y and therefore
x − y = 760 and x + y = 1180
Adding the two 2 x = 1940 and x = 970 and y = 1180 − 970 = 210
Hence velocity of jet in still air is 970 miles per hour and velocity of wind is
210 miles per hour.
Actual Answer:
https://socratic.org/questions/flying-against-the-wind-a-jet-travels-3040-miles-in-4-hours-flying-with-the-wind
Answer:
true
Step-by-step explanation:
