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
sergeinik [125]
2 years ago
11

You have 40 minutes to exercise at the gym, and you want to burn 300 calories total using both machines. How much time should yo

u spend on each machine?A photo shows an elliptical trainer marked as 8 calories per minute and a stationary bike marked as 6 calories per minute.
Mathematics
1 answer:
FromTheMoon [43]2 years ago
4 0

Answer

8(40-y) + 6y =300

320 - 8y + 6y =300

-2y=-20

y=10

This leaves x to be 30.

You should spend 30 minutes on machine 1 and 10 minutes on machine 2.

Step-by-step explanation:

You might be interested in
Write an example of an equation that’s represents exponential decay
seropon [69]

The equation for exponential decay is given as y = a(1 - r)^x.

<u>Explanation:</u>

The formula for original exponential decay is y = ab^x.

The growth rate (r) is determined as b = 1 + r.

The decay rate (r) is determined as b = 1 - r.

y = ab^x (Where b = 1 - r)

y = a(1-r)^x

a represents the initial value

r represents growth or decay rate

x represents the number of time intervals that have passed.

<em>For example</em>

The population of Home Town is 2016 was estimated to be 35,000 people with an annual rate of increase of 2.4%.

The equation for decay factor y = 35000(1 - 0.024)^x

y = 35000(0.976). (where x = 1)

7 0
3 years ago
One moving company charges $800 plus $16 per hour. another moving company charges $720 plus $21 per hour. at what number of hour
Veronika [31]
Hour 16; $1056
Hope this helps :)

3 0
3 years ago
Find the value of x.<br><br> help
Komok [63]

Answer:

X=62

Step-by-step explanation:

X=62 because the side where x is and where the other degree is, they are congruent. And since you have to add 12 it would have to be 62 to be equal to 74.

7 0
3 years ago
Hey! Want to help me out here? It's due soon ;-;
AveGali [126]

Answer:

D

Step-by-step explanation:  All the numbers have to be less than 7 but greater than -45

7 0
2 years ago
Read 2 more answers
Joseph's parents have planted two gardens. One is square and has an area of 25 ft 2. The other one has two sides equal to 2/3 of
Tomtit [17]
A. 15ft - 12ft

b.120ft2
6 0
3 years ago
Other questions:
  • Jake has taken 4 test and his average so far is 79. if he takes 2 more tests and scores a 100 on both what will his average be?
    5·1 answer
  • The Rockwell hardness of a metal is determined by impressing a hardened point into the surface of the metal and then measuring t
    11·1 answer
  • I don't understand this at all soo ;-;​
    10·2 answers
  • Jacob is tasked with the duty of selecting one name from a list of all employees in his company to award him or her and his or h
    13·1 answer
  • Can someone help me plssss I need to turn this to night !!!!!!!!
    13·1 answer
  • 5 Select the correct answer. Michael had $550 in his savings account. He took out $30.75 every month for one year. What is the n
    12·1 answer
  • the problem is in the snippet below please only correct answers hmu if you are good at these and i will just have you answer mor
    15·1 answer
  • 3 x [9 – (4 + 2) = 2]
    8·1 answer
  • This is for one of my ARMY friends. Which property of math is 7+(-2)=(-2)+7
    13·1 answer
  • Joey is standing on a diving board that is 5.6 feet above sea level. Joey dives into the water to a depth of -8.6 feet below sea
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!