Answer:
18 men are required to reap the field in 1 hour
Step-by-step explanation:
3*6=18
Solve the following system of equations for x: 4x + 6y = 68 2x + 6y = 76 A. x = - 14 B. None of these. C. x = - 4 D. x = 14 E. x = 4
Top answer · 3 votes
option C is correct More
Answer:
47.5%
Step-by-step explanation:
Find the z-scores:
z = (x − μ) / σ
z₁ = (300 − 400) / 50 = -2
z₂ = (400 − 400) / 50 = 0
300 is 2 standard deviations below the mean, and 400 is 0 standard deviations from the mean.
From the empirical rule, 95% of a normal distribution is between -2 and +2 standard deviations. Since normal distributions are symmetrical, that means half of that is between -2 and 0 standard deviations.
95% / 2 = 47.5%
Answer:
13
Step-by-step explanation:
subtract 2 by 15 to get 13
k = 13
Answer:
7 is x
Step-by-step explanation:
1) Divide both sides by 5 to give
4=-3+x
x=4+3
x=7
2) Multiply 5 with the RHS (Right Hand Side) to give
20=-15+5x
20+15=5x
35=5x
x=7