You have 40 minutes to exercise at the gym, and you want to burn 300 calories total using both
machines. The amount of calories burned on each machine is shown in the picture below. How
much time should you spend on each machine?


Machine a burns 8 calories per minute machine b burns 6 calories per minute.

Answers

Answer 1
a and b are the minutes spent on machine A and machine B, respectively.

a+b = 40
b = 40-a

8a + 6b = 300
8a + 6(40-a) = 300
8a + 240 - 6a = 300
2a = 60
a = 30
b = 40-a = 10

30 minutes on machine A and 10 minutes on machine B

Related Questions

Create a polynomial that has 10 roots.

Answers

Answer:

(x – 3)(x + 5)(x + ½) = (x2 + 2x – 15)(x + ½) = x3 + 2.5x2 – 14x – 7.5

im going down to S o U t H p A r K

Answers

Answer:

ok have a nice time

Step-by-step explanation:

Answer:

I totally agree *brainly don't take down my answer pls*

Step-by-step explanation:

In September, Louise planted a tree. Every month, the tree Louise planted grew 2 inches. What would the constant of proportionality of the line be?

Answers

Answer:

i think it would  be 2 inches

Step-by-step explanation:

ABCD is a trapezium
AD=10cm
AB=9cm
DC=3cm
Angle ABC=angled BCD=90degrees
Calculate the length of AC
Give your answer correct to 3 significant figures

Answers

Answer:

12.0 cm

Step-by-step explanation:

✔️First, find the height, BC, of the trapezium using Pythagorean Theorem.

BC² = 10² - (9 -3)²

BC² = 10² - 6²

BC² = 64

BC = √64

BC = 8 cm

✔️Find AC using Pythagorean Theorem:

AC² = AB² + BC²

AC² = 9² + 8²

AC² = 145

AC = √145

AC = 12.0415946 ≈ 12.0 (3 significant figures)

Read and understand the problem Guide Questions solution​

Answers

Yeahhhhhhhhhhhhhhhhhhhhhh

what property is 37 • 2 • (-5 + 5 + 1/2)

Answers

Answer:

37

Step-by-step explanation:

74*(-5+5+1/2)

74*(1/2)

37

Can u answer this with all of the questions answered pls I’ll give away 30 points

Answers

Answer:

4 x 4 = 16

16 ÷ 4 = 4

I cant answer the last bit as I'm not really sure what the options are? If you could tell me then I could probably answer it :)

Step-by-step explanation:

-2j - 10 = -6 She calculated j = 8

Is this correct or incorrect?

Answers

Answer:

incorrect

Step-by-step explanation:

this is incorrect because i solved it and i didn't got that answer

hope this helps:)

Pls mark brainlist

Answer:

Incorrectj = -2

Explanation:

-2j - 10 = -6

Add 10 To Both Sides

−2j − 10 + 10 = −6 + 10

−2j = 4

Divide Both Sides By -2

-2j / -2 = 4 / -2

j = -2

7 3/8 divided by 6 as a fraction

Answers

Answer:

[tex] \frac{73}{48} [/tex]

Step-by-step explanation:

.......

-2(4x-1)-7=5

whats the next step in solving this equation

Answers

Answer:

Using distributive property is the next step in solving the equation

Step-by-step explanation:

-2(4x-1)-7=5

-8x+2-7=5

Answer:

The next step would be to do distributive property.

Step-by-step explanation:

-2(4x-1)-7=5

-8x + 2 - 7 = 5

-8x - 5 = 5

     +5    +5

-8x = 10

/-8     /-8

x= -5/4

 or

x = -1 1/4

Hope this helps and I hope u have an Amazing day!!

What is the value of x?
Original 9 inches - 6 feet
Enlargement 12 inches - x feet

Answers

Answer:

Step-by-step explanation:

You bought the new PS5 and 4 games for $660. the PS5 cost $499 and each game cost the same amount. Write an equation that can be used to solve how much each game cost and solve the problem.

Answers

4x+499=660
X=40.25
X equeals the amount for each game.

To find the median you do not have to arrange the numbers in order from least to greatest (true or false)

Answers

Answer:

false

Step-by-step explanation:

you have to order them from least to greatest in order to find the answer

What’s the greatest common factor between 13,65, and 169

Answers

Answer:

gcf, hcf, gcd (65; 169) = 13: greatest (highest) common factor (divisor), calculated. The numbers have common prime factors.

Answer:

13 Hope this helps :)

If you add​ Natalie's age and​ Fred's age, the result is 46. If you add​ Fred's age to 4 times​ Natalie's age, the result is 91. Write and solve a system of equations to find how old Fred and Natalie are.

Answers

Answer:

Fred = 31

Natalie = 15

Step-by-step explanation:

We have Natalie and Fred's whos age are unknown, we know that when added, their ages equal 46. While when multiplied with Natalie's age 4 times, their ages is 91.

Create two systems :

F = Fred

N = Natalie

F + N = 46

4N + F = 91

We can change the first equation to Natalie's age alone :

N = 46 - F

Now substitute this into the second equation :

4(46 - F) + F = 91

Distribute :

184 - 4F + F = 91

Subtract 184 from both sides :

-4F + F = -93

Add like terms :

-3F = -93

Divide -3 from both sides :

F = 31

Therefore, Fred is 31 years old. Now replace his age in the first equation :

31 + N = 46

46 - 31

15

Therefore, Natalie is 15 years old.

Question 4
4 pts
You roll 2 fair 6-sided dice. What is the probability of rolling a sum of 7 or more?
18/36 or 1/2
20/36 or 5/9
19/39
21/36 or 7/12

Answers

Answer:

   here we have rolled two dice. So total no. of possible outcomes will be 6^2=36. These are (1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6).

   Now, among these cases the cases where the sum is seven for (1,6), (2,5), (3,4), (4,3), (5,2), (6,1) i.e. there are 6 cases.

   Now, it is time to calculate the probability.

   The required probability is,

   p = (No. of cases favorable for the event)/(Total no. of cases)

   =6/36 =

Step-by-step explanation:

Two fair six-sided dice are rolled. What is the probability that the sum of the two dice is seven?

Please explain how you got your answer.
Solve for c.
ab + c = 5

c = 5/ab
c = 5 + ab
c = 5 - ab

Answers

Answer:

c= 5-ab

Step-by-step explanation:

Ive done this answer

can someone help me find the equation for this line please

Answers

Answer:

y = x + 1

Step-by-step explanation:

The line y = x  goes through the origin, and forms a perfect 45 degree angle with the x axis.

This is that same line, moved upward 1 unit, so the y value comes out 1 unit more.

Also, in y = mx + b form (slope-intercept form), we see slope m = 1 and y-intercept b = 1, so

y = 1x + 1 = x + 1

y = x + 1

I have to put it as a point (x,y)​

Answers

Answer:

(4,-2) is the answer to that equation.

Answer:

(-4,0)

Step-by-step explanation:

solve for the first variable in one of the equations,then substitute the result into the other equation

I NEED HELP NOW PLEASE! (Science)


A bowling ball is placed on the moon.

Which feature of the bowling ball stays the same?


A. force from gravity

B. weight

C. mass

Answers

Answer:

C. mass

Step-by-step explanation:

gravity is different on the moon

and weight is different because of that change in gravity

If the bowling ball is placed on the moon, the feature which will stays same,  mass of the ball. So option C is correct

What is Force ?

The definition of force is the pushing or pulling of anything. Push and pull are the result of two things interacting with one another. Stretch and crush are two more phrases that can be used to describe force.

Given that,

A bowling ball is placed on the moon

So, when ball is placed on moon, it affects the following factors,

Force from gravity - On the Earth and on the Moon the gravitational force will be different.

Weight - On the Earth and On the Moon the gravitational acceleration will be different so weight will be different on both the planets.

Mass- It is the property of the object and it is independent from the planets, it will be same on every planet.

Hence, the  Mass is same on both the planets

To know more about Force check:

https://brainly.com/question/13191643

#SPJ6

I'll mark you as the brainiest if you get this correct
thx xxx

Answers

Answer:

Multiply 3

Step-by-step explanation:

Does anyone need help with History or Algebra, Common core, Pre-Algebra Or Fractions of such?

Answers

Answer:

I dont know but maybe later

how to evaluate higher powers of i

Answers

Answer:

i^0 = 1

i^1 = i

i^2 = -1

i^3 = -i

i^4 = 1

i^5 = i

i^6 = -1

i^7 = -i

i^8 = 1

i^9 = i

Step-by-step explanation:

Anything raised to 0 is 1

Anything raised to 1 is itself

I just always knew i^2 = -1

I put this rest into the calculator honestly

But if you look at the stuff from i^2, you'll notice there's a pattern (-1, -i, 1, i) and it repeats. I bet if you raise i to the 10th, 11th, 12th, and 13th power, it is going to repeat the same pattern. I hope this helps in any way.

Please help you don’t need to show work

Answers

Answer:

106 degrees

Step-by-step explanation:

Answer:

106

Step-by-step explanation:

Haley made 88% on a history test. The
test had 50 questions of equal point value.
How many questions did Haley miss?

Answers

Answer:

She missed 6 questions.

Step-by-step explanation:

88% can be written as (88/100) or as 0.88.

You can set this as a ratio problem which is,  

88/100 = correct/50

correct = (88/100)*50       (multiply both sides by 50)

correct = 44

So, 50 (total questions) - 44 = 6 incorrect questions

Given m||n, find the value of x and y

Answers

Answer:

x = 8

y = 29

Step-by-step explanation:

8x - 11 = 9x - 19

x - 19 = -11

x = 8

2y - 5 = 9x - 19

2y - 5 = 9(8) - 19

2y - 5 = 72 -19

2y - 5 = 53

2y = 58

y = 29

Need help please identify the lines is it chord, secant, tangent, radius, or diameter.

Answers

Xb= radius """"""00""""""6(6(

Pls help Factor 4x^3+32

Answers

Answer:

Step-by-step explanation:

The greatest common factor they share is 4.

[tex]4(x^3+8)[/tex]

Hey there, I really need help! I don't understand how to solve this. PLEASE HELP ME!!

Answers

Answer:

B

Step-by-step explanation:

The total rainfall for the year is expected to be 57.8 inches. If it has already rained 32.95 inches, how many more inches of rain are expected?

Answers

Answer:

Step-by-step explanation:

57.8 - 32.95 = 24.85

24.85 inches

Don't forget units! :)

Answer:

24.85in

Step-by-step explanation:

This is a very simple subtraction:

57.80-32.95=24.85in

i hope this helps

pls give thx and brainliest

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