Answer: The club membership increased by 20%
Step-by-step explanation:
A clubs Membership increased from 25 to 30 members. This means that the number of people by which the club's membership increased is
30 - 25 = 5
To determine the percentage of increase, it would be
Increase in membership/initial number of members × 100
It becomes
5/25 × 100 = 0.2 × 100 = 20%
Percentage increase is 20%
regardless of the sign of either "x" and "y".
0.373 seconds. First, calculate the initial vertical velocity of the shell. 800sin(30) = 800*0.5 = 400 m/s Now the formula for the distance traveled is d = 400 m/s * T + 0.5A T^2 Substituting known values gives. 150 = 400 m/s * T + 0.5*9.80m/s^2 T^2 150 = 400 m/s * T + 4.9 m/s^2 T^2 Arrange as a quadratic formula 0 = 400 m/s * T + 4.9 m/s^2 T^2 - 150 4.9 m/s^2 T^2 + 400 m/s * T - 150 = 0 Now solve for T using the quadratic formula with a=4.9, b=400, and c=-150 The calculated value is 0.373 seconds. Is this value reasonable? Let's check. The initial downward velocity is 400 m/s. So 150/400 = 0.375 seconds. Since the actual time will be a bit less due to acceleration by gravity and since the total time is so short, there won't be much acceleration due to gravity, the value of 0.373 is quite reasonable.
I got -0.75. But is that a 3 and 1/2 or just 3?
Answer:
x = 8
Step-by-step explanation:
3/4x - 7 = -1
Your first step is to isolate the variable term 3/4x, to do this you have to add 7 to both sides:
3/4x -7 (+7) = -1 (+7)
3/4x = 6
Next, you want to get rid of the fraction by multiplying both sides by the denominator #, 4
3/4(x4) x = 6(x4)
3x = 24
Final step, you divide by three to isolate the x!
3x/3 = 24/3
x = 8
Hope this helps! =D