Part A: Solve the equation 5(x + 2) = 6x + 3x − 14, and show your work. (5 points)
1 answer:
Answer:
x = 6
Step-by-step explanation:
Step 1 - Expand brackets via distributive property:
Step 2 - Combine like terms:
Step 3 - Use the addition property of equality to isolate the 9x:
Step 4 - Use the subtraction property of equality to move the 5x over and isolate the 24:
Step 5 - Use the division property of equality to simplify:
Hope this helps!
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Answer:
6.68% of the female college-bound high school seniors had scores above 575.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 500
Standard Deviation, σ = 50
We are given that the distribution of score is a bell shaped distribution that is a normal distribution.
Formula:
P(scores above 575)
P(x > 575)
Calculation the value from standard normal z table, we have,
6.68% of the female college-bound high school seniors had scores above 575.