1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
m_a_m_a [10]
3 years ago
13

#7: At the gym on Saturday, Reese ran 5 miles on the treadmill and then

Mathematics
1 answer:
Minchanka [31]3 years ago
8 0

Answer: The equations are 5t + e = 725 and 3t + e = 505

Step-by-step explanation: We shall start by assigning letters to the unknown variables, hence we shall call the treadmill t, and we shall call the elliptical machine e.

If on Saturday, she ran 5 miles on the treadmill and 1 mile on the elliptical machine and she burned 725 calories in the process, we can express this as

5t + e = 725 ------(1)

Also on Sunday, she ran 3 miles on the treadmill and 1 mile on the elliptical machine and burned 505 calories in the process, that too can be expressed as

3t + e = 505 ------(2)

We now have a pair of simultaneous equations which an be solved by the elimination method (reason being that on of the unknowns have the same coefficient, that is variable e).

Subtract equation (2) from equation (1) and you arrive at;

2t = 220

Divide both sides of the equation by 2

t = 110

Having calculated the value of t, substitute for the value of t into equation (1)

5t + e = 725

5(110) + e = 725

550 + e = 725

Subtract 550 from both sides of the equation

e = 175

The above calculations shows that the calories burned on each gym equipment are;

Treadmill = 110 per hour

Elliptical = 175 per hour

You might be interested in
Jenn recorded the favorite school subject of students at her school. she surveyed 700 students. how many more students chose Eng
sergij07 [2.7K]
105 students chose English than science
5 0
3 years ago
Read 2 more answers
Predict how many students will make a shelf if<br> there are 180 students in the woodshop class.
Rom4ik [11]
180 students will make a shelf XD
4 0
3 years ago
Sixty-five campers arrive. Nine go home early. If 8 people sleep in 1 tent, how many tents will the campers need?
allsm [11]

65-9=56

56 divided by 8 is 7

So they will need 7 tents

4 0
3 years ago
Which is equal to 100%?<br> O A 0.001<br> B.<br> 100<br> O c. 0.1<br> 10<br> 10<br><br> Need ASAP
Phoenix [80]

Answer:

100% equals to 1 because 75% = 0.75 so then just add 25% = 0.25 so 0.25+0.75=1

Step-by-step explanation:

7 0
3 years ago
Calculus. Find the area.
matrenka [14]

Answer:

8/3 square units.

Step-by-step explanation:

First, visualize the area. You can refer to the attachment below.

To find the area then, we will integrate y from x = 0 to x = 2. Therefore:

\displaystyle A=\int_0^2x^2\, dx

Integrate:

\displaystyle A=\frac{1}{3}x^3\Big|_{0}^2

Evaluate:

\displaystyle A=\frac{1}{3}[2^3-0^3]=\frac{1}{3}(8)=\frac{8}{3}

The area is 8/3 square units.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following types of symmetry does the graph of the equation r=6sin 5 theta have?
    11·2 answers
  • The elevation of a tree's root is -13 feet and spans a radius of 8 feet. If the elevation of the tree is 28 feet with branches t
    8·1 answer
  • The difference between the total and static pressure before a shock is 75 psi. what is the maximum static pressure that can exis
    11·1 answer
  • Kate has 12 1/2 pounds of chocolate. She gives each of her 5 friends x pounds each and has 3 1/3 pounds left over. How much did
    13·1 answer
  • You are painting the outside of a 28 foot fence that goes around a square garden. There are 4 equal sections. You have painted 1
    15·1 answer
  • What is the standard deviation of the data set? 1, 4, 2, 2, 8, 7, 3 Round your answer to the nearest tenth.
    14·2 answers
  • 1)According to the table, is the exam grade a function of the number of hours spent studying?
    10·2 answers
  • Which fundamental identity is used in the second step of proof?
    12·1 answer
  • Anyone can find “v” and “u”??
    12·1 answer
  • Becky has 4 1/2 cups of ice cream. If each ice cream scoop is 1/2 cup, how many scoops of ice cream can she make?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!