The probability is 0.302.
This is a binomial probability. There are two outcomes; the probabilities are independent; and there is a fixed number of trials. The probability is given by:
46.2 dollars for the large necklaces and 14 dollars and seventy cents for the small necklaces therefore she will earn $60.9
X = longer piece, y = shorter piece
x + y = 21
x = y + 13
y + 13 + y = 21
2y + 13 = 21
2y = 21 - 13
2y = 8
y = 8/2
y = 4 <=== shorter piece is 4 ft
x = y + 13
x = 4 + 13
x = 17 <== longer piece is 17 ft
Answer: 0
Step-by-step explanation: THAT IS THE CORRECT ANSWER
Answer:
7. x = 3
Step-by-step explanation:
To find the value of x, use the triangle sum property. Every triangle has interior angles which add to 180 degrees. To solve, add the expressions and numbers together then set equal to 180. Then use inverse operations to solve for x.
7. 20x - 9 + 10x + 9 + 90 = 180 Subtract 90 from both sides.
20x - 9 + 10x + 9 = 90 Add -9 + 9 = 0
20x + 10x = 90 Add like terms 20x + 10x = 30x
30x = 90 Divide both sides by 30.
x = 3
Repeat this process for each problem.