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
omeli [17]
3 years ago
5

Someone rides a bike at a constant speed. they go 30 miles in 2 hrs. What was their speed?

Mathematics
2 answers:
lesantik [10]3 years ago
8 0

Answer:

They were going at 15 mph. Scroll down for step-by-step! :)

Step-by-step explanation:

2 hours, 30 miles. 30 divided by 2 :)

Yuliya22 [10]3 years ago
7 0

Answer: Their speed was 15mph

Step-by-step explanation: 30÷2=15mph

You might be interested in
Find the midpoint of the segment with the given endpoints <br><br> (-9,-9) and (7,5)
Mice21 [21]

Answer:

  • (-1, -2)

Step-by-step explanation:

<u>Given points</u>

  • (-9,-9) and (7,5)

<u>Midpoint is</u>

  • ((-9 + 7)/2, (- 9 + 5)/2) =
  • (-2/2, -4/2) =
  • (-1, -2)
5 0
2 years ago
A ladder 20 feet long is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of 2
alukav5142 [94]

Answer:

0.17 °/s

Step-by-step explanation:

Since the ladder is leaning against the wall and has a length, L and is at a distance, D from the wall. If θ is the angle between the ladder and the wall, then sinθ = D/L.

We differentiate the above expression with respect to time to have

dsinθ/dt = d(D/L)/dt

cosθdθ/dt = (1/L)dD/dt

dθ/dt = (1/Lcosθ)dD/dt where dD/dt = rate at which the ladder is being pulled away from the wall = 2 ft/s and dθ/dt = rate at which angle between wall and ladder is increasing.

We now find dθ/dt when D = 16 ft, dD/dt = + 2 ft/s, and L = 20 ft

We know from trigonometric ratios, sin²θ + cos²θ = 1. So, cosθ = √(1 - sin²θ) = √[1 - (D/L)²]

dθ/dt = (1/Lcosθ)dD/dt

dθ/dt = (1/L√[1 - (D/L)²])dD/dt

dθ/dt = (1/√[L² - D²])dD/dt

Substituting the values of the variables, we have

dθ/dt = (1/√[20² - 16²]) 2 ft/s

dθ/dt = (1/√[400 - 256]) 2 ft/s

dθ/dt = (1/√144) 2 ft/s

dθ/dt = (1/12) 2 ft/s

dθ/dt = 1/6 °/s

dθ/dt = 0.17 °/s

8 0
3 years ago
Evaluate the integral of e^(3x)cos(4x)dx
VladimirAG [237]
Please find the attached image

5 0
3 years ago
A deposit of $6,500 was invested and has grown to $8,300 in 5 years. The growth in value was via simple interest, calculated on
bagirrra123 [75]

Answer: 5.5%

Step-by-step explanation:

Since the money invested has grown to $8300 and the principal was $600, this means the interest is:

= $8300 - $6500

= $1800

Simple interest = (Principal × Rate × Time)/100

1800 = (6500 × Rate × 5)/100

Cross multiply

1800 × 100 = 32500 × Rate

Rate = 180000/32500

Rate = 5.5%

5 0
3 years ago
32. Which of the following is horizontal ellipse
maria [59]

Answer:

  • b. 16x² + 25y² = 1

Step-by-step explanation:

Only one of them has a < b in ax² + by² = c formula, making its graph horizontal

All the rest are vertical, see attached

6 0
3 years ago
Other questions:
  • The _____ force always points opposite to the direction an object moves, or tries to move.
    6·2 answers
  • Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.
    9·1 answer
  • Suppose that you are headed toward a plateau 20 m high. If angle of elevation to the top is 10°, how far are you from the base o
    6·1 answer
  • The number 25 is a perfect square true or false true
    9·2 answers
  • Gym a charges $25 per month plus a $60 initiation fee. Gym b charges $30 per month and no initiation fee. Find the number of mon
    6·1 answer
  • Please help me! Thank you!
    15·1 answer
  • Find the axis of symmetry of the parabola
    10·1 answer
  • Solve each system of equations below by substitution
    8·1 answer
  • What is 7 fewer than a number s
    11·1 answer
  • Area of composite figures worksheet. How do you solve it. Step-By-Step​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!