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
faltersainse [42]
3 years ago
14

One sign shows 15 miles in 20 minutes what is the speed in miles per hour.

Mathematics
1 answer:
emmainna [20.7K]3 years ago
7 0

Answer:

45 miles/hour

Step-by-step explanation:

We need the speed in miles per hour so we need to changes minutes to hours

20 minutes * 1 hour /60 minutes = 1/3 hour

Speed = distance/ time

           = 15 miles/(1/3 hour)

            =15 *3 miles/hour

            = 45 miles /hour

You might be interested in
How many bottles does it take to hold 51 fluid ounces of water?
antoniya [11.8K]

Answer: It takes 7 bottles to hold 51 fluid ounces of water.

Step-by-step explanation:

51/8 = 6.37

6 0
2 years ago
Question 2.
ipn [44]

Answer:

1) -0.669

2) -0.669

3) 0.669

Step-by-step explanation:

Since we are subtracting or adding multipled of pi, we will either obtain 0.669 or -0.669 as our answer for each of the three different questions.

Cosine is the x-coordinate in our orderes pairs. If our point ends up on the right side of the y-axis, the cosine will be positive. If our point ends up on left side, it will be negative.

Choose a thetha (I'm going to choose it in degrees) in the first quadrant to help with a visual.

If theta=70:

1) then 180-70=110 which is in second quadrant, so our cosines will be opposite in value.

2) then 180+70=250 which is in third quadrant, so our cosines will be opposite in value.

3) then 4×180-70=720-70=650 =1(360)+290 which ends up in the 4th quadrant which means the consines will have the same value.

3 0
3 years ago
the perimeter of a rectangle is 160ft. One fourth the length is the same as twice the width. Find the dimensions of the rectangl
Hitman42 [59]

Answer:

w = 80/9 ft.

L = 640/9 ft.

Step-by-step explanation:

L = length    w = width

2w = L/4  so 8w = L

160 = 2L + 2w

160 = 2(8w) + 2w

160 = 16w+2w

160 = 18w

80/9 = w

5 0
2 years ago
The value of x =<br> 60°<br> 5<br> x<br> 30°
nikklg [1K]

Answer:

10

Step-by-step explanation:

with reference angle 30°

perpendicular (p) = 5

hypotenuse (h) = x

Now

sin 30° = p / h

1 / 2 = 5 / x

x = 10

Hope it will help :)

6 0
3 years ago
What words are accepted without proof in a logical system
Nadya [2.5K]
Axiom and postulates. They are considered to be self evident.
3 0
3 years ago
Other questions:
  • Common denominator and strategy 2/3 and 10/15
    10·2 answers
  • A wildlife service wanted to estimate the number of alligators in a river so they tagged 90 alligators and released them back in
    15·1 answer
  • Solve this equation 3/5(x-10)=18-4x-1 combine like terms that are on the same side of the equation
    13·1 answer
  • Is 4/5*4/5 equal to 4/5?
    11·2 answers
  • 5p/-1 + q when p is 21 and q is 9
    12·1 answer
  • Please help it’s urgent
    8·1 answer
  • Find the slope of the line that passes through:<br> (2, 4) and (6, 12)
    6·2 answers
  • If the parallel sides of a parallelogram are 2 cm apart and their sum is 10 cm then its area is​
    12·1 answer
  • What is the difference between the highest and lowest temperature in the list below;
    12·1 answer
  • steve baked 5 1/2 batches of cookies in one and one half hours. Vondra baked 3 1/3 batches of cookies in 11/12 hour. Which baker
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!