# Math

Megan exercises every morning for 40 minutes. She does a combination of step aerobics, which burns about 11 calories per minute, and stretching, which burns about 4 calories per minute. Her goal is to burn 335 calories during her routine. Write a system of equations that represents Megan's morning workout.

1. 👍
2. 👎
3. 👁
1. x = minutes of aerobics
y = minutes of stretching

x + y = 40
11x + 4y = 335

It is possible to solve those two equations for both x and y, but they are only are asking for the equations.

In case you are curious, x = 25

1. 👍
2. 👎

## Similar Questions

1. ### Chem 2

Propane (C3H8) burns in oxygen to produce carbon dioxide and water vapor. The balance equation for this reaction is C3H8 + 5O2 ----> 4H20 + 3CO2. What volume of carbon dioxide id produced when 2.8 L of oxygen are consumed? Here

2. ### Algebra

On Monday, it took Helen 3 hours to do a page of science homework exercises. The next day she did the same number of exercises in 2 hours. If her average rate on Monday was p exercises per hour, what was her average rate the next

3. ### math

John drives to work each morning and the trip takes an average of µ = 38 minutes. The distribution of driving times is approximately normal with a standard deviation of σ = 5 minutes. For a randomly selected morning, what is the

4. ### Algebra

Josephine solved a quadratic equation: (x+6)^2=49. Her work is shown below. Step 1: √(x+6)^2 = √49 Step 2: x+6 = 7 Step 3: x = 7−6 Step 4: x = 1 In which step did Josephine make an error? A- step 4 B- step 1 C- step 2 D-

1. ### math

Consider the sequence of steps to solve the equation: 2(x − 4) + 6x = 9x − 10 Which step in solving this equation is justified by the Commutative Property of Addition? Given ⇒ 2(x − 4) + 6x = 9x − 10 Step 1 ⇒ 2x − 8

2. ### Algebra

please help Ahmad is choosing between two exercise routines. In Routine #1, he burns 22 calories walking. He then runs at a rate that burns 15.5 calories per minute. In Routine #2, he burns 48 calories walking. He then runs at a

3. ### Math

Megan's dog Sparky eats 4 1/4 c of food each day. Explain how Megan can determine how much food to give Sparky if she needs to feed him only 2/3 as much. Solve the problem.

4. ### math

As part of a new fitness plan, Sabir runs on a treadmill at the same speed for 15 minutes every morning. The table shows the calories he burns over time. Time (in minutes) Number of calories Burned 3 15 6 30 9 45 12 60 Write an

1. ### math

At a local fitness​ center, members pay aa ​\$12 membership fee and ​\$3 for each aerobics class. Nonmembers pay ​\$4 for each aerobics class. For what number of aerobics classes will the cost for members and nonmembers be

2. ### Statistics

John drives to work each morning and the trip takes an average of μ = 38 minutes. The distribution of driving times is approximately normal with a standard deviation of σ = 5 minutes. For a randomly selected morning, what is the

3. ### algebra

You are assigned 32 math exercises for homework. You complete 75% of the exercises before dinner. How many exercises do you have left to do after dinner?

4. ### Algebra

David is choosing between two exercise routines. In Routine #1, he burns 18 calories walking. He then runs at a rate that burns 10.25 calories per minute. In Routine #2, he does only running, burning 12.5 calories per minute. For