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
A business has two loans totaling $85,000. One loan has a rate of 4.5% and the other has a rate of 6%. This year, the business e
butalik [34]

Answer:

$30,000 and $55,000

Step-by-step explanation:

If 4.5% loan is x, and the 6% loan is y, then:

x + y = 85000

0.045x + 0.06y = 4650

Solve the system of equations with substitution or elimination.  Using substitution:

0.045x + 0.06(85000 − x) = 4650

0.045x + 5100 − 0.06x = 4650

450 = 0.015x

x = 30000

y = 55000

5 0
3 years ago
Read 2 more answers
1) Erik has a job at Hobby Lobby and he
Artyom0805 [142]

Answer:

78

Step-by-step explanation:

is there more to this problem?

13. 00* 6 = 78

7 0
2 years ago
The simplest form of the expression -2x2(x – 5) + x(2x2 – 10x) + x is
Bad White [126]
For this case you must simplify the expression respecting the rules of multiplication of mathematics.
 The steps to simplify the expression are the following:
 First multiply what is in the parentheses
  -2x ^ 2 (x - 5) + x (2x ^ 2 - 10x) + x
  -2x ^ 3 + 10x ^ 2 + 2x ^ 3 - 10x ^ 2 + x
 Then add the terms that have the same exponent
 (-2x ^ 3 + 2x ^ 3) + (10x ^ 2 - 10x ^ 2) + x
  x
 The final simplification is
 x
 answer
 x
4 0
3 years ago
Read 2 more answers
The daily recommended allowance of calcium for a sixth grader is 1,200 mg. One cup of
ExtremeBDS [4]

Answer: one cup of milk contains 300 mg of calcium

Step-by-step explanation:

25% of 1200 is 300

8 0
3 years ago
PLEASE HELP LOOK AT THE PICTURE I NEED HELP NOWWWW!!!! WILL GIVE 20 POINTSSSSSS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Verdich [7]

Answer:

A. 35

Step-by-step explanation:

√35 = 5.9160797830996160425673282915616170484155012307943403228797196691

6 0
3 years ago
Read 2 more answers
Other questions:
  • How to find the degree of each monomial?
    12·1 answer
  • Carlos creates a basic budget using the equation Money Left Over = a - b - C, where
    6·1 answer
  • The number of species of coastal dune plants in australia decreases as the latitude, in °s, increases. There are 34 species at 1
    5·1 answer
  • A zoo charges admission of $4.75 for adults and $2.75 for children. A group of 12 people paid for admission with a 50-dollar bil
    15·1 answer
  • Can someone please help???
    7·2 answers
  • I need to divide and then write in simplest form 2/5÷1/6
    6·1 answer
  • A thermos in the shape of a cylinder is filled with coffee. The height of the cylinder is 12 inches and its radius is 2 inches.
    13·2 answers
  • Caitlyn is saving for vacation. She already has $38 and plans to save $18 per week until she reaches her goal of $524. Caitlyn’s
    10·2 answers
  • The students put recycling bins in the teachers lounge at school at the end of the week there was a total of 48.9 pounds of cans
    10·1 answer
  • Select all ordered pairs that satisfy the function
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!