The coach recorded how fast her runners ran 1 mile. Eric ran a mile in 10.84 minutes, Kay ran a mile in 12.79 minutes, and Rosie ran a mile in 9.58 minutes. How many more minutes did Eric run than Rosie?

1.26 minutes

Step-by-step explanation:

The runners all ran the same distance of 1 mile.

Eric's time to run 1 mile = 10.84 minutes

Kay's time to run 1 mile = 12.79 minutes

Rosie's time to run 1 mile = 9.58 minutes

This implies that Rosie is the fastest runner among the three.

The difference between Eric and Rosie's time = Eric's time - Rosie's time

                                            = 10.84 - 9.58

                                            = 1.26

The difference between Eric and Rosie's time shows the minutes Eric ran more than Rosie. Therefore, Eric ran 1.26 minutes more than Rosie.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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answers

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step-by-step explanation: