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
natta225 [31]
3 years ago
11

A girl and a puppy are 540 feet apart when they start running towards each other. The girl runs at a speed of 15 feet per second

, and the puppy runs at a speed of 12 feet per second. How soon will they meet?
Mathematics
2 answers:
Lerok [7]3 years ago
6 0

Answer: 20 seconds

Step-by-step explanation:

The distance is 540 feet

speed of the girl = 15ft/s

speed of the puppy = 12 ft/s

If we stand in the frame of reference where the girl is still, in this frame the speed of the puppy will be equal to the speed of the puppy in our previus frame plus the speed of the girl in the previous frame (because they are running in opposite directions)

S = 15 ft/s + 12ft/s = 27ft/s

Now we can use the equation:

time = distance/speed

T = 540ft/27ft/s = 20s

alexdok [17]3 years ago
4 0

Answer:

20 secs

Step-by-step explanation:

The distance is 540 feet

speed of the girl = 15ft/s

speed of the puppy = 12 ft/s

If we stand in the frame of reference where the girl is still, in this frame the speed of the puppy will be equal to the speed of the puppy in our previus frame plus the speed of the girl in the previous frame (because they are running in opposite directions)

S = 15 ft/s + 12ft/s = 27ft/s

Now we can use the equation:

time = distance/speed

T = 540ft/27ft/s = 20s

You might be interested in
A circle has an 18 inch radius and a shaded sector with a central angle of 50 degrees. What is the area of the shaded sector
Katyanochek1 [597]
Answer: The area of the sector will be about 141.3 square inches.

First, we need to find the area of the entire circle. The formula is pi(r^2). Inputting 18 for the radius makes the area of the circle about 1017.36 square inches.

Now, we multiply by the area by the size of the sector. It is 50 degree out of the entire 360 degrees. That is about 13.9%.

Multiply 13.9% by 1017.36 to get an area of about 141.3 square inches for the sector.
5 0
3 years ago
An anthropologist studies a woman's femur that was uncovered in Madagascar. To estimate the woman's height, he uses the equation
Lelu [443]

Answer:

The inequality f>40 represents the length of the femur for which the woman had a height greater than 160cm.

Step-by-step explanation:

The given equation is

h=60+2.5f

Where, h is woman's height in centimeters and f is length of the femur in centimeters.

If woman's height is greater than 160cm, then

h>160

60+2.5f>160

Substract 60 from both sides.

2.5f>100

Divide both sides by 2.5.

f>40

Therefore the inequality  f>40 represents the lengths of the femur for which the woman had a height greater than 160cm.

5 0
3 years ago
PLEASE HELP THIS IS FOR MY DANCE CLASS
Cerrena [4.2K]

Answer:

The pythogarean theorem,

Step-by-step explanation:

I dunno jumping jacks lol

5 0
3 years ago
Read 2 more answers
The sum of 4 consecutive integers is 406. find the integers
BabaBlast [244]

Answer and Step-by-step explanation:

When trying to figure this out, we know that the numbers have to be one after the other, like 1, 2, 3, 4, or 55. 56, 57, 58. The last digit in the numbers also have to add to 6.

<u>The answer is:</u>

100 + 101 + 102 + 103

It adds up to 406, and the integers are consecutive.

<u><em>#teamtrees #PAW (Plant And Water)</em></u>

<u><em></em></u>

<u><em>I hope this helps!</em></u>

8 0
2 years ago
Read 2 more answers
What is the value of x??
Feliz [49]

Answer:

I. 5

Step-by-step explanation:

  • 140° and 8x° are on the straight angle and they are both equal 180°

to find the value of x:

140 + 8x = 180

8x = 180 - 140

8x = 40

x = 40/8

x = 5

4 0
3 years ago
Other questions:
  • A bag has 4 balls: 1 red (R), 1 green (G), 1 yellow (Y), and 1 blue (8)
    12·2 answers
  • How do I solve this?
    13·1 answer
  • A family has two cars. The first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel efficiency of
    13·2 answers
  • Mortar is made by mixing cement, sand and quicklime in the ration 1:2:3
    15·1 answer
  • Jack mixes yellow and blue paint to make green paint that he will use to paint his basement. He uses a ratio of 3 pints of yello
    10·1 answer
  • Miles
    12·1 answer
  • Plsss help!! In triangle ABC, AC=13, BC=84, and AB=85. Find the measure of angle C
    12·1 answer
  • 4(f+3)=62 whats the value of f
    9·1 answer
  • Estimate the measure of ∠PQR to the nearest 10 degree
    9·2 answers
  • Find the slope of the line. Enter your answer in simplest form. ​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!