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
Paladinen [302]
3 years ago
9

1. Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 s?

Mathematics
2 answers:
sveta [45]3 years ago
6 0
1. 100 * 20
2. 7 hours
3. 141 kilometers
4. 8.5 hours
5. 55.75 mi/h
HACTEHA [7]3 years ago
5 0

Answer:

1. 100/20

2. 7 h

3. 141 km

4. 8.5 hours

5. 56 mi/h

Step-by-step explanation:

(dimensions are omitted)

1. speed = distance/time

speed = 100/20

2. time = distance/speed

time = 315/45 = 7 h

3. distance = speed*time

distance = 35.25 * 4 = 141 km

4. time = distance/speed

to the lake: time = 216/48 = 4.5 h

from the lake: time = 216/54 = 4 h

total time:  4.5 + 4 = 8.5 h

5. speed = distance/time

first trip: speed = 203/3.5 = 58 mi/h

second trip: speed = 243/4.5 = 54 mi/h

average speed = (58 + 54)/2 = 56 mi/h

You might be interested in
WILL MARK BRAINLIEST NEED HELP ASAP :D
nexus9112 [7]

The measure of angle RML is of 130º.

<h3>What is the value of x?</h3>

Angle NML is the sum of angles NMR and RML, hence:

NML = NMR + RML.

The given measures of the angles are:

  • NML = 156º.
  • NMR = 26º.

Hence we can solve the equation for RML to find the measure of angle RML, as follows:

NML = NMR + RML

156 = 26 + RML

RML = 130º.

The measure of angle RML is of 130º.

A similar problem, in which the measures of the angles are calculated, is given at brainly.com/question/25716982

#SPJ1

5 0
1 year ago
Please help me, I'm so lost! If you can explain it to me, I will give brainliest!
Alex Ar [27]

Answer:

     40

y = ----

      3

Step-by-step explanation:

5 0
2 years ago
Mara put down 7.5% on the purchase of her new
sesenic [268]

Answer: $189 000

brainliest or a thank you please :))

goodluck!

6 0
3 years ago
If the length of the side of a square is 3×-y what is the area of the square in terms of x and y
soldier1979 [14.2K]
(3x -y)(3x-y )= 9x^2 - 6xy + y^2
5 0
3 years ago
What are some fun games to play on your computer
sasho [114]
Papas pizzeria!! Haha
7 0
3 years ago
Other questions:
  • Allison has 5 times as many baseball cards as football cards. In all she has 120 baseball and football cards. How many baseball
    14·1 answer
  • Write 5 5/8 as a improper fraction
    13·2 answers
  • More help please!!!!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • 18 + what will get me 45
    12·2 answers
  • g Recall the example about community college students and gender. Statistics students surveyed 135 students at Tallahassee Commu
    13·1 answer
  • -3.4(-5.5)(3)=. Help me. I need help ASAP
    9·1 answer
  • Given: A(-4,1), B (6, 1), C (-2, -3), D (4, -3), E (5, 4) and the center O (1, 1); use 3.14 for
    14·1 answer
  • Your friend writes 8% as a fraction. Is your friend correct?
    8·2 answers
  • Please help it’s geometry will mark brainliest!
    8·1 answer
  • While Anne was visiting her sister in Hillsdale, she bought a coat that was marked down 60% from an original price of $100. If t
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!