Make an equation to solve this problem:Barrys mountain bike weighs 6 pounds more than Andy's. If their bikes weighs 42 pounds altogether how much does barry's bike weigh? Identify the if-then moves in your equation.

Answers

Answer 1

Answer: b=a+6
b+a=42
susitute
a+6+a=42
subtract 6
2a=36
divide 2
a=18
subisute
b=18+6=24

b=24
a=18

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What is the value of x/4y , when x = 16 and y = 2 worth 20 pts pls help quickA.1/32

B.2

C.2 2/3

D.4

Evaluate the expression for the given values
mx−y when m=2, x=7, and y=5

put your answer below

Answers

The answer to your question is b. 2

X/4y
X/4*y
16/4*2
16/4=4
4*2=8

Express twenty-nine thousandths as a fraction

Answers

29/1000. Because .29 is twenty-nine thousandths

18. In their last basketball game, Holly scored25 points and Juanita scored 16 points. The
mean number of points Holly scores is 20 with
a standard deviation of 2. The mean number
of points Juanita scores is 12 with a standard
deviation of 1.25. Whose score is better relative
to her average number of points per game?

Answers

Answer:

Juanita's score was better

Step-by-step explanation:

Juanita scored 6.4 points above her average score whereas Holly only scored 2.5 points above her average score. (this was calculated via z-scores)

Final answer:

To find who performed better relative to their average, we calculated the z-scores of both players. Juanita's score was 3.2 standard deviations above her mean, whereas Holly's was 2.5 standard deviations above her mean, making Juanita's performance relatively better.

Explanation:

To answer this question, we need to find how many standard deviations each player's score deviates from their respective means. This is referred to as the z-score. The z-score is calculated using the formula (X - μ) / σ, where X is the score, μ is the mean score and σ is the standard deviation.

For Holly, her z-score would be (25 - 20) / 2 = 2.5. This means Holly's score was 2.5 standard deviations above her mean score.

For Juanita, her z-score would be (16 - 12) / 1.25 = 3.2. This means Juanita's score was 3.2 standard deviations above her mean score.

Since Juanita's z-score is higher than Holly's, Juanita's score is better relative to her average number of points per game.