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
IgorLugansk [536]
3 years ago
12

The red race car drives 21 miles in 15 minutes. Find the miles per hour

Mathematics
1 answer:
irina [24]3 years ago
3 0

Answer:

1.4mph

Step-by-step explanation:

21 miles÷15minutes= 1.4 miles per hour

1.4 miles per hour ×15 minutes= 21miles

You might be interested in
Please Help I Don't Undertand.
frozen [14]

If triangles AMN and ABC are similar, then

AM/AB = AN/AC

or

AM/(AM + MB) = AN/(AN + NC)

Check if this is true:

AM/AB = 21/(21 + 9) = 21/30 = 7/10

AN/AC = 14/(14 + 6) = 14/20 = 7/10

The angle at vertex A is common to both of the triangles.

Then by the side-angle-side (SAS) similarity theorem, the triangles are indeed similar.

4 0
1 year ago
Simplify (2sq root 5-4) (3sq root 5-2)
tatuchka [14]

Answer:

2√5-4(3√5-2)

6√25-4√5-12√5+8

6(5)-16√5+8

30+8-16√5

38-16√5

7 0
3 years ago
What equation will give the perimeter of the figure? HELP HELP HELP
nata0808 [166]

Answer:

(2l + 2w) + (a + b + c)

Step-by-step explanation:

The formula for the perimeter of a rectangle is

P = 2l + 2w

so if you substitute, it becomes

P = 2(12) + 2(2)

= 24 + 4

= 28

For the perimeter of a triangle the correct formula would be

P = a + b + c

The missing side in the triangle is 3 because 15 - 12 is 3.

If you substitute, it becomes

P = 2 + 3 + 6

P = 11

If we add both perimeters together we get the full perimeter of the figure which is

28 + 11 = 39

I am not sure if you wanted the answer as well but just in case :)

4 0
3 years ago
Please help me I will mark u as brainlyest answer
dsp73

Answer:

D, D, G, G,

Step-by-step explanation:

1st. Decay: This is decay because number being multiplied is less than 1.

2nd. Decay:This is decay because number being multiplied is less than 1.

3rd. Growth: This is growth because the number being multiplied is greater than 1.

4th.Growth:This is growth because the number being multiplied is greater than 1.

8 0
3 years ago
Please help brainiest for correct answer please i need this done quick
babunello [35]

Answer:

Its the third answer

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for t. <br> 3/4t = 1/4 <br><br><br> A.1/3 <br><br> B.1 <br><br> C.4/3 <br><br> D.4
    10·2 answers
  • What is the solution to the inequality?<br>10.2 +18 &lt; -2​
    15·1 answer
  • Determine whether the given measures can be the lengths of the sides of a triangle write yes or no
    13·1 answer
  • The domain of f(x) is the set os all real numbers greater than or equal to 0 and less than or equal to 2. True of false
    8·1 answer
  • Among all monthly bills from a certain credit card company, the mean amount billed was $465 and the standard deviation was $300.
    11·1 answer
  • A certain disease has an incidence rate of 0.2%. If the false negative rate is 8% and the false positive rate is 4%, compute the
    15·1 answer
  • Samantha is collecting quarters for a school fundraiser. She wants to wrap what she has already collected into coin rolls. Each
    15·1 answer
  • During optimal conditions, the rate of change of the population of a certain organism is proportional to the population at time
    13·1 answer
  • Two friends, Caleb and Ynez are both selling brownies for a class fundraiser. They decide to advertise how much buying a certain
    5·1 answer
  • A gemstone is cut in the shape of a triangular pyramid. The area of the base of the pyramid is 42 square millimeters. The height
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!