Mathematics, 29.08.2019 03:10 zuleidysnegron

Lourdes plans to jog at least 1.5 miles. lourdes averages 3.75 mph pace when she jogs write and solve an inequality to find x, the number of hours lourdes will have to jog

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Answer from: plshelp8227

An inequality compares two or more variables by using the <, >, ≤, or ≥ signs.

The number of hours Lourdes will have to jog is 0.4 hours

From the given parameters:

Lourdes plans to jog for at least a distance of 1.5 milesIf Lourdes can jog averagely at the speed of 3.75 mph

Then,

the inequality that can represent the information can be written as:

= 1.5 miles ≤ 3.75 (x) miles/hour

Solving the inequality;

= 1.5 ≤ 3.75 (x)

Making (x) the subject of the formula, we have:

$\mathbf{x =\dfrac{1.5}{3.75}}$

x = 0.4 hours

Therefore, we can conclude that the number of hours lourdes will have to jog is 0.4 hours

Learn more about inequality here:

link

Answer from: tatyanaknight122

Step-by-step explanation:

At least means greater than or equal to, so that is the symbol we will use. Now, we want the inequality to compare the distance she plans to jog and the amount of time jogged multiplied by the speed, since time times speed equals distance.

Writing this out we get 1.5 ≤ 3.75x

so 1.5 will always be less than or equal to the distance jogged. let me know if there is something you don't understand. But after this just solve for x.

Answer from: Quest

step-by-step explanation:

Answer from: Quest

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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