Question: Solve the problem using a system of equations. In a study, a group of athletes was exercised to exhaustion. Let x represent an athletes heart

Solve the problem using a system of equations.

In a study, a group of athletes was exercised to exhaustion. Let x represent an athlete’s heart rate 5 sec after stopping exercise and y this rate 10 sec after stopping. It was found that the maximum heart rate H for these athletes satisfied the two equations

H = 0.491x + 0.468y + 11.2

H = -0.981x + 1.872y + 26.4.

If an athlete had maximum heart rate H = 180, determine x and y graphically. Round to the nearest tenth. Interpret the answer. Solve the problem using a system of equations.In a study,

Step by Step Solution

★★★★★

3.46 Rating (153 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

H 0491x0468y 112 H 0981x 1872y 264 Substitute H 180 and ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related College Algebra Questions!

Solve the problem using a system of equations. A cup of uncooked rice contains 15 g of protein and 810 calories. A cup of uncooked soybeans contains 22.5 g of protein and 270 calories. How many cups...

Solve the problem using a system of equations. The table was generated using a function y 1 = ax 2 + bx + c. Use any three points from the table to find the equation for y 1 . PLOAY UTR EN FARIAH...

Use the Gauss-Jordan method to solve each system. 2x + 3y = 10 -3x + y = 18

20. (Modeling) Heart Rate [A graphing calculator is required] In a study, a group of athletes was exercised to exhaustion. Let :r represent an athlete's heart rate 5 sec after stopping exercise and y...

In one study a group of athletes were exercised to exhaustion. Let x and y represent an athlete's heart rate 5 seconds and 10 seconds after stopping exercise, respectively. It was found that the...

Confirming Pages C H A P T E R 19 Analyzing Information and Writing Reports Chapter Outline Using Your Time Efficiently Analyzing Data and Information for Reports Identifying the Source of the Data...

Why Hospitals Don't Learn from Failures: ORGANIZATIONAL AND PSYCHOLOGICAL DYNAMICS THAT INHIBIT SYSTEM CHANGE Anita L. Tucker Amy C. Edmondson T he importance of hospitals learning from their...

MATHEMATICIANS RISE TO A CHALLENGE ne of the theorems we teach in eighth grade is a + b= *, where c is the length of the hypotenuse of a right triangle in Euclidean space, and a and b are the lengths...

This paper should include 3-5 pages of content with an additional cover and reference page. This is a total of 5-7 pages. Please be aware that a properly formatted page will include approximately 350...

Suppose that you are the owner of the Original Italian Pizza restaurant chain and would like to predict the sales of your specialty, deep-dish pizza. You have gathered data on the monthly sales of...

The following data are available from orthogonal cutting experiments. The depth of cut (feed) to = 0.13 mm, width of cut b 2.5 mm, rake angle a = - 5, and cutting speed V = 2 m/s. Chip thickness, te...

If management is not committed to funding a project or does not believe that the project is a strategic fit for the organization, the potential for not approving the project is high, even if the...

For each of the following, give five reasons why: (a) A dog is more intelligent than a worm. (b) A human is more intelligent than a dog. (c) An organization is more intelligent than an individual...

State the dimension of each matrix. 2

Graph the solution set to the inequality.

Evaluate d(13, 18) if d(x, y) = (x - 1) + (y 2).

Answer each independent question, (a) through (e) below a. Project A costs $5,000 and will generate annual after-tax net cash inflows of $2,000 for 5 years. What is the payback period for this...

question 18-1 Which one of the following statements regarding time-series methods is FALSE? Select one: a. In an exponential smoothing model a larger value for alpha results in greater emphasis being...

650-Q2 You are trying to take a sample from a large population, and need to determine the appropriate sample size. You are estimating sales at a large chain of department stores. A previous survey...