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
Otrada [13]
3 years ago
14

Several times a week, Chuck goes to the gym to run andswim. When running, heburns 35 calories per minute. When swimming,he burns

30 calories per minute. He has found a way to burn 730 calories after exercising for a total of 23 minutes. If r is the number of minutes running and wis the number of minutes swimming, howlong does Chuck spend at each activity?
Mathematics
1 answer:
ICE Princess25 [194]3 years ago
3 0

Answer:

Chucks spent 8 minutes running and 15 minutes swimming

Step-by-step explanation:

Here, we want to know the amount of time Chuck spends on individual activities.

since the total time spent for the burning is 23 minutes;

then ;

r + w = 23 ••••••••(i)

Now, the number of calories burnt to running for r minutes will be r * 35 = 35w calories

The number of calories burnt to swimming for w minutes will be w * 30 = 30w calories

The addition of both gives the total calories burnt;

Hence;

35r + 30w = 730 ••••••••(ii)

So we have two equations to solve simultaneously ;

From i; r = 23-w

Substitute this into ii

35(23-w) + 30w = 730

805 -35w + 30w = 730

35w -30w = 805-730

5w = 75

w = 75/5

w = 15 minutes

but r = 23 - w

r = 23 -15

r = 8 minutes

You might be interested in
What is the slope of the line through (-1,2) and (-3,-2)?​
Morgarella [4.7K]

Answer:

D

Step-by-step explanation:

4 0
3 years ago
What is 20+50+9-6>79-1 must show step by step
Harman [31]

Answer:

73>78

Step-by-step explanation: 20 +50 + 9= 79 -6 = 73

6 0
3 years ago
Read 2 more answers
Square T was translated by the rule (x + 2, y + 2) and then dilated from the origin by a scale factor of 3 to create square T″.
Delicious77 [7]

Answer: OPTION C.

Step-by-step explanation:

It is important to know the following:

<u> Dilation:</u>

  • Transformation in which the image has the same shape as the pre-image, but the size changes.
  • Dilation preserves betweenness of points.
  •  Angle measures do not change.

<u>Translation:</u>

  • Transformation in which the image is the same size and shape as the pre-image.
  • Translation preserves betweenness of points.
  • Angle measures do not change.

Therefore, since the Square T was translated and then dilated to create Square T'', we can conclude that the statement that explains why  they are similar is:

<em>Translations and dilations preserve betweenness of points; therefore, the corresponding sides of squares T and T″ are proportional.</em>

6 0
3 years ago
Read 2 more answers
I didn't get how you wrote 1.75 like how did it come there?
sertanlavr [38]

Answer:

Uhh what??

Step-by-step explanation:

Do you mean like 1.75 in a decimal form??

4 0
3 years ago
Ab=6cm<br> Ac=12cm<br> Calculate the length of CD
KatRina [158]

Answer:

12.7 cm

Step-by-step explanation:

ABC

12² = 6² + BC²

12² - 6² = BC²

144 - 36 = 108

CB² = 108

√108 = 10.392

CB = 10.392

CBD

Sin (55°) = CB / CD

0.81915 = √108 / CD

CD = 10.392 / 0.81915

CD = 12.686

CD = 12.7cm

3 0
2 years ago
Other questions:
  • Triangle ABC has vertices A(4, 5), B(0, 5), and C(3, –1). The triangle is translated 3 units to the left and 1 unit up.
    9·2 answers
  • Once again super confused
    5·1 answer
  • At jacks laundromat, 6 of the washers must be replaced. These washers represent 1/4 of the total number of washers. If w represe
    6·2 answers
  • Which graph represents the function of f(x) = the quantity of 4 x squared minus 4 x minus 8, all over 2 x plus 2?
    12·1 answer
  • On a set of blueprints, the scale is 1/2 inch = 4 feet. Find the actual length of a room that measures 2.8 inches on the bluepri
    8·1 answer
  • Martin had to buy some cleaning materials.
    13·1 answer
  • What is the value of 7x2−6x when x = 4
    13·1 answer
  • Rachel’s mother tells her she can play at the arcade as long as the cost does not exceed $24. Each game costs $1.50.
    6·1 answer
  • 8. It takes Olivia 3 | yards of ribbon
    9·1 answer
  • một máy bay đang bay ở độ cao 1700m.Từ đài quan sát người ta nhìn thấy máy bay dưới 1 góc 25° so với mặt đất.Tính khoảng cách từ
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!