Pleaseeee help!!!!!!!!!!! I'll see if I could give you Brainliest

Answer:

16 minutes on the elliptical trainer and 32 minutes on the treadmill.  

Step-by-step explanation:

We have the following relation for the training in both machines:

[tex] 400 cal = 9 cal/min*t_{1} + 8 cal/min*t_{2} [/tex]    (1)

Where:

t₁: is the time spent on the elliptical trainer

t₂: is the time spent on the treadmill    

With:

[tex] t_{1} + t_{2} = 48 min [/tex]    (2)  

From equation (2) we have:

[tex] t_{1} = 48 min - t_{2} [/tex]    (3)

By entering equation (3) into (1):

[tex] 400 cal = 9 cal/min*(48 min - t_{2}) + 8 cal/min*t_{2} [/tex]  

[tex] 400 cal = 432 cal - 9 cal/min*t_{2} + 8 cal/min*t_{2} [/tex]

[tex] t_{2} = \frac{32 cal}{1 cal/min} = 32 min [/tex]

Now, we can find t₁:

[tex] t_{1} = 48 min - t_{2} = 48 min - 32 min = 16 min [/tex]              

Therefore, you should spend 16 minutes on the elliptical trainer and 32 minutes on the treadmill.

I hope it helps you!

Answer:

speed = 55mi/HR, distance is 45 miles and time is not given so what we are finding is the time the vehicle used when travelling 45miles at a rate of 55mi/hr. distance=speed×time. 45=55×time(t). 45=55t. now divide 45 by 55t to get time. which is 0.82.

Answer:$20

Step-by-step explanation:

320 ÷ 16= 20

Answer:the answer is c

Step-by-step explanation:

Answer:

its D

Step-by-step explanation:

i got it right e2020

9514 1404 393

Answer:

  2 medium bags

Step-by-step explanation:

Using estimates of 8, 12, and 20 for the number of cups in each bag size, you can see that the number of each size needed is ...

  floor(30/8) = 3 . . . small bags

  floor(30/12) = 2 . . . medium bags

  floor(30/20) = 1 . . . large bag

3 small bags will contain 3(8 1/4) = 24 3/4 cups.

2 medium bags will contain 2(12 3/4) = 24 3/2 = 25 1/4 cups

1 large bag will contain 20 7/8 cups.

The closest Natalie can get without exceeding the container size is with purchase of 2 medium bags.

_____

Additional comment

The best solution would be to purchase 1 small and 1 large bag, for a total of ...

  8 1/4 +20 7/8 = 28 9/8 = 29 1/8 . . . cups

However, that purchase is not multiple bags of the same size.

Answer:

c. y=ln(2-x)

d. y=log(0.25-x)

b. y=0.7log(x)

a. y=1.2ln(x)

Step-by-step explanation:

Answer:

1. 26   2.  2    3.   4

Step-by-step explanation:

Answer:

1) 26%

2) 2%

3)18%

Step-by-step explanation:

1) the sausage slice in the pi chart is the same size as the mushroom slice, and the mushroom slice is 26%. And both the sausage slice and the mushroom slice makes up half the pi chart.

2) 2% more people like bacon than ham, 14-12=2

3) 14 + 26=40 12+10=22 40-22=18 18% more people like bacon or sausage then ham or peporoni.

if you need the numbers of people not the percentages let me know, I think ill know the answer.

Answer: D.

Step-by-step explanation:

Water is continually pumped out of underground aquifers to prevent flooding and to provide drinking water. This makes the soil compact, causing the city to sink.

Answer:

The correct answer is D. underground aquifers being over pumped

Step-by-step explanation:

Answer:

You paid $92

Step-by-step explanation:  

you convert 15% to a decimal which wold be .15 then you multiply 80 by .15  and get 12 then you add 12 to the 80 and get 92 so the bill would be $92

Answer:

10 inches long.

Step-by-step explanation:

Answer:

10 inches

Step-by-step explanation:

I did 2.5*4 and got 10

Answer:

1429.68

Step-by-step explanation:

Answer:

1429.68

Step-by-step explanation:

Answer:

3.20 gallons

Step-by-step explanation:

Given:

[tex]\dfrac{dr}{dt}=1.4\text{ in/s}[/tex]

[tex]\dfrac{dh}{dt}=-2.1\text{ in/s}[/tex]

To find:

The rate of change in volume at [tex]r=120\text{ in. and }175\text{ in.}[/tex]

Solution:

We know that, volume of a cone is

[tex]V=\dfrac{1}{3}\pi r^2h[/tex]

Differentiate with respect to t.

[tex]\dfrac{dV}{dt}=\dfrac{1}{3}\pi\times \left[(r^2\dfrac{dh}{dt}) + h(2r\dfrac{dr}{dt})\right][/tex]

Substitute the given values.

[tex]\dfrac{dV}{dt}=\dfrac{1}{3}\times \dfrac{22}{7}\times \left[(120)^2(-2.1) +175(2)(120)(1.4)\right][/tex]

[tex]\dfrac{dV}{dt}=\dfrac{22}{21}\times \left[-30240+58800\right][/tex]

[tex]\dfrac{dV}{dt}=\dfrac{22}{21}\times 28560[/tex]

[tex]\dfrac{dV}{dt}=29920[/tex]

Therefore, the volume of decreased by 29920 cubic inches per second.

Answer:

lines that never touch and are next to each other are parallel

Step-by-step explanation:

Step-by-step explanation:Well u need to try but if not i will help

The tax amount on shirt whose Selling Price is $24 at a tax rate of 6% is $1.44.

A tax is a financial charge imposed on a taxpayer by a governmental organization in order to fund government spending and public expenditures.

Given is the selling price of shirt as $24. The tax rate is 6%.

Selling price of shirt [S.P.] = $24

Tax rate [R%] = 6%

Therefore, the tax amount = T[A] will be -

T[A] = $(S.P x R/100)

T[A] = $(24 x 6/100)

T[A] = $(24 X 0.06)

T[A] = $1.44

Therefore, the tax amount on shirt whose Selling Price is $24 at a tax rate of 6% is $1.44.

To solve more questions on Tax amount, visit the link below-

https://brainly.com/question/19924720

#SPJ2

Answer:

-1/5

Step-by-step explanation:

y2-y1/x2-x1

1-2=-1

-4-1=-5

-1/5

Answer:

C) 1/5

Step-by-step explanation:

Find the Slope (1, 2) and (−4, 1)

Slope is equal to the change in y over the change in x, or rise over run.

              change in y

    m =     __________

               change in x

The change in x is equal to the difference in x-coordinates (also called run), and the change in y

is equal to the difference in y-coordinates (also called rise).

               y2 − y1

    m =     _________

                x2 − x1

Substitute in the values of x and y into the equation to find the s lope.

               1 − (2)

    m =    _________

               −4 − (1)

Simplify the numerator.

                 −1

    m =     _________

                −4 − (1)

Simplify the denominator.

                −1

     m =    ________

                −5

Dividing two negative values results in a positive value.

                 1

     m =    ________

                 5

Answer: 7 h and 20 min

Step-by-step explanation:

The return trip: 50

And hour : 7

So 50/7= the total return trip

50/7 = about 7.1428

Round to nearest 10th

Equals 7.20 so 7 h and 20 min is the total time.

Answer:

See below for answers and explanations

Step-by-step explanation:

I assume the function you wrote was [tex]f(x)=-4^{x-1}-2[/tex]

1) The equation for the horizontal asymptote is y=-2 since a function of the form f(x) = a(b^x) + c always has a horizontal asymptote at y = c, so c=-2, therefore the horizontal asymptote equation is y=-2

2) The range is (-∞,-2) since any real value of y that is less than -2 but doesn't equal -2 (since it's not included) will be a solution.

3) The domain is (-∞,∞) since any real value of x will be a solution.

4) The axis that f(x) is reflected over is the x-axis because when you negate a base in an exponential function, that will occur.

Answer:

It would be a straight line through the points (0, -2) and (-0.667, 0)

Step-by-step explanation:

Answer: if you can't see it well, the points are (0,-2) and (1,-5). I'm pretty sure it's the one on your screen though

Step-by-step explanation:

Answer:

its b

Step-by-step explanation:

Answer:

D (7=30x)

Step-by-step explanation:

Answer:

About 840.

Step-by-step explanation:

The exact answer is 836 lbs.

Answer:

1:4

2:8

3:12

4:16

5:20

6:24

7:28

8:32

9:36

10:40

Step-by-step explanation:

Answer:

Step-by-step explanation:

12 x 7 = 84

-13 . 20 = -260

(5) (-10.5)= -52.5

(-7.5) x (-3.2) = -24

Btw some is wrong but I’ll need to let you figure out which ones I’m not gonna do your homework for you without you doing something.

Answer:

A, Outlier

Step-by-step explanation:

This data point lies significantly out of the range of all the other data points.

Answer:

8837 pounds

Step-by-step explanation:

m-7437=1400

mis the weight of the mother (expressed as  a variable)

m-7437=1400

  +7437  +7437

m=8837 pounds

Answer:

The inequality is 25+8.50w≥122

Answer:

We can do 220 jumping jacks in 5 minutes.

Step-by-step explanation:

We are given the function:

[tex]j(x) =44x[/tex]

Note: Considering there is typing mistake and the function is: j(x)=4x

where x is minutes

We need to find How many  jumping jacks can you do in 5 minutes.

So, here x=5

Now putting value of x in the given function

[tex]j(x) = 44x\\Put \ x=5\\j(5)=44(5)\\j(5)=220[/tex]

So, we can do 220 jumping jacks in 5 minutes.