Answer: the cost of each pendant is $2.1
Step-by-step explanation:
Let x represent the cost of each pendant.
Amy made 3 identical necklaces, each having beads and a pendant. It means that the cost of the pendant used is $3x. The total cost of the beads and pendants for all 3 necklaces was $13.20. If the beads cost a total of $6.90, then the equation would be written as
6.90 + 3x = 13.20
3x = 13.20 - 6.90
3x = 6.3
x = 6.3/3
x = 2.1
Answer:
1) B 1/4
2) C 36
3) C 4
Step-by-step explanation:
1) 1/2 chance for tails on both the first and second flips
1/2•1/2 = 1/4
2) 8/10 marbles are white.
as the marble is always replaced, the chances never change.
0.8(45) = 36
3) there are 6 sides to a cube but only one even number less than four (2), so the chances are 1/6
1/6•24 = 4
The answer is either 8 or 1/8
-- 9 people paint 5 walls in 60 minutes
-- 9 people paint (5 / 5) = 1 wall in (60 / 5) = 12 minutes
-- (9 / 9) = 1 person paints 1 wall in (9 x 12) = 108 minutes
-- 1 person paints (1 x 6) = 6 walls in (108 x 6) = 648 minutes
-- (1 x 4) = 4 people paint 6 walls in (648 / 4) = 162 minutes .
The best measure for evaluating the relative contributions of the individual predictors in a multiple regression is β.
Obtain the standardized coefficients. Regression Sum up the absolute value of all standardized coefficients. Divide every individual standardized coefficient estimate by using the sum and multiply by one hundred to attain the contribution of every predictor variable.may additionally.
Normally variable with highest correlation is a great predictor. you can also examine coefficients to pick the pleasant predictor additionally look exchange in squared cost. Relative significance is described because the percentage development with admire to the maximum essential predictor. Relative importance is calculated with the aid of dividing every variable importance rating by the most important importance rating of the variables.
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