Answer:
3/5x = 15
multiply both sides by 5
This cancels out denominator of fraction =
3x = 75
x = 25
If you would like to know which is the correct unit of measurement to use when figuring out how many yards each child would run in the race, you can calculate this using the following steps:
80 yards * 2 + 60 yards * 2 = 160 + 120 = 280 yards
The correct measurement would be A. yards.
Answer:
-4
Step-by-step explanation:
The coefficient is the number that multiplies the variable.
To find the coefficient, you'll see it right next to the variable.
Here, x is the variable.
-4x, -4 is right next to x, so it's the coefficient
:)
Answer:
Step-by-step explanation:
Given mean = 84,
Standard deviation = 2,
Sample 64,
95% confidence interval: z = 1.96
Applying empirical rule , means that 95% of data fall within two standard deviations.
ME = = 0.49
Rounding this to 0.5
CI = 83.5< mean < 84.5
Outside of this range= x ≤ 83.5 and ≥ 84.5
