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
vova2212 [387]
2 years ago
5

A person runs 1 4/5 miles in 1/5 of an hour. Determine how many miles they are running per hour

Mathematics
1 answer:
Mashcka [7]2 years ago
3 0

Answer: 9 miles per hour.

Step-by-step explanation:

In 1 hour they would run (1 4/5)/(1/5) = (9/5)*5 = 9 hours. So, they are running 9 miles per hour.

You might be interested in
If the bakers percentage for raisins in a raisin bread formula is 8% and the bakers percentage for flour is 100%, what amount of
a_sh-v [17]
How many pounds were the 8% formula?
4 0
3 years ago
Read 2 more answers
If you have a cubic polynomial of the form y = ax^3 + bx^2 + cx + d and lets say it passes through the points (2,28), (-1, -5),
nikklg [1K]

Step-by-step explanation:

<u>Step 1:  Solve using the first point</u>

<em>(2, 28)</em>

28 = a(2)^3 + b(2)^2 + c(2) + d

28 = 8a + 4b + 2c + d

<u>Step 2:  Solve using the second point</u>

<em>(-1, -5)</em>

-5 = a(-1)^3 + b(-1)^2 + c(-1) + d

-5 = -a + b - c + d

<u>Step 3:  Solve using the third point</u>

<em>(4, 220)</em>

220 = a(4)^3 + b(4)^2 + c(4) + d

220 = 64a + 16b + 4c + d

<u>Step 4:  Solve using the fourth point</u>

<em>(-2, -20)</em>

-20 = a(-2)^3 + b(-2)^2 + c(-2) + d

-20 = -8a + 4b - 2c + d

<u>Step 5:  Combine the first and fourth equations</u>

<u />28 - 20 = 8a - 8a + 4b + 4b + 2c - 2c + d + d

8 = 8b + 2d

8 - 8b = 8b - 8b + 2d

(8 -8b)/2 = 2d/2

4 - 4b = d

<u>Step 6:  Solve for c in the second equation</u>

-5 + 5 = -a + b - c + d + 5

0 + c = -a + b - c + c + d + 5

c = -a + b + d + 5

<u>Step 7:  Substitute d with the stuff we got in step 5</u>

c = -a + b + (4 - 4b) + 5

c = -a + b + 4 - 4b + 5

c = -a - 3b + 9

<u>Step 8:  Substitute d and c into the first equation</u>

<u />28 = 8a + 4b + 2(-a - 3b + 9) + (4 - 4b)

28 = 8a + 4b - 2a - 6b + 18 + 4 - 4b

28 - 22 = 6a - 6b + 22 - 22

6 / 6 = (6a - 6b) / 6

1 + b = a - b + b

1 + b = a

<u>Step 9:  Substitute a, b, and c into the third equation</u>

220 = 64(1 + b) + 16b + 4(-(1 + b) - 3b + 9) + (4 - 4b)

220 = 64 + 64b + 16b + 4(-1 - b - 3b + 9) + 4 - 4b

220 - 100 = 60b + 100 - 100

120 / 60 = 60b / 60

2 = b

<u>Step 10:  Find a using b = 2</u>

a = b + 1

a = (2) + 1

a = 3

<u>Step 11:  Find c using a = 3 and b = 2</u>

c = -a - 3b + 9

c = -(3) - 3(2) + 9

c = -3 - 6 + 9

c = 0

<u>Step 12:  Find d using b = 2</u>

d = 4 - 4b

d = 4 - 4(2)

d = 4 - 8

d = -4

Answer:  a = 3, b = 2, c = 0,d = -4

6 0
2 years ago
Read 2 more answers
Plsss helppp meee thankssss
raketka [301]

Answer:

Step-by-step explanation:

4 0
3 years ago
. name four rays shown?
Aliun [14]
The rays shown in the pictur: Ray VX, YZ , XY, ZV..... Plus more!
4 0
3 years ago
Right triangle abc and pqr are shown below what angle is congruent to angle a and b what is the area in squares of triangle pr4
Effectus [21]
6x3=18-3=15 Hope it helps
4 0
3 years ago
Other questions:
  • Answer this please! The question and answers options are on the picture! ​
    6·1 answer
  • As part of his science project, Steve recorded the number of eggs laid by several lizards from the local pet shop. The data Stev
    14·2 answers
  • In a plane, the distinct lines AB and CD intersect at A, where A is between C and D. The measure of BAC is 54 Degrees, what is t
    12·1 answer
  • 50 POINTS PLEASE HELP ME!! PLEASE HURRY ASAP!!!!!<br> Solve for x
    13·1 answer
  • the width of a rectangle is 2 more than 4 times its length. The perimeter of the rectangle is 24 centimeters. Find the width of
    13·1 answer
  • How to find the slope from a graph ?Be very specific
    9·2 answers
  • Can someone please do this problem<br><br>​
    9·1 answer
  • Name the figure below in two different ways.
    5·2 answers
  • Use the function g(x) = -5x + 17 to answer the questions.
    14·2 answers
  • Pls say fast :( its my online test
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!