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
melomori [17]
3 years ago
13

Write 225 miles in 3 hours as a unit rate.

Mathematics
1 answer:
Fittoniya [83]3 years ago
6 0
225 miles / 3 hours = 75 miles / 1 hour
so the rate per hour is 75 miles
You might be interested in
Amy is building a house. the basement floor is at -15 feet. the roof of the house is above the ground 25 feet. write an inequali
olchik [2.2K]
An inequation is a mathematical expression that is used to make constraints given a problem.
 For example, this is a problem of heights.
 There is a minimum height and a maximum height.
 We can use the following inequation to describe the problem:
 Let
 x = height in feet.
 The inequation is:
 -15 <= x <= 25
 answer:
 -15 <= x <= 25
3 0
3 years ago
Picking a blue shirt from a drawer with 8 blue shirts and 2 white shirts.
meriva
If you dealing with probability.


You got ten shirts 8 are blue 2 are white.

So you have an 80% chance of grabbing blue and 20% of white.

And 8:2 ratio
7 0
3 years ago
8 /3 c - 2 = 2/3 c - 12 these is so hard<br><br>Solve for c. ?
cluponka [151]

Step-by-step explanation:

8 /3 c - 2 = 2/3 c - 12

Put all the one u want to solve to one side

8 /3 c - 2 = 2/3 c - 12

8/3c - 2/3c = 2-12

6/3c = - 10

Now multiply 3c to both sides

6 = - 30c

c = 6/ - 30

= 1 / - 5

= 1

- - - - - - -

5

8 0
3 years ago
Read 2 more answers
Sketch the region enclosed by x+y2=12x+y2=12 and x+y=0x+y=0. Decide whether to integrate with respect to xx or yy, and then find
Paladinen [302]

Answer:

A = \frac{74}{3} -\frac{7}{2} +36 = \frac{127}{6} +36 = \frac{343}{6}

Step-by-step explanation:

For this case we have these two functions:

x+y^2 = 12   (1)

x+y=0   (2)

And as we can see we have the figure attached.

For this case we select the x axis in order to calculate the area.

If we solve y from equation (1) and (2) we got:

y = \pm \sqrt{12-x}

y = -x

Now we can solve for the intersection points:

\sqrt{12-x} = -\sqrt{12-x}

12-x = -12+x

2x=24 , x=12

\sqrt{12-x} =-x

12-x = x^2

x^2 +x -12=0

(x+4)*(x-3) =0

And the solutions are x =-4, x=3

So then we have in total 3 intersection point x=12, x=-4, x=3

And we can find the area between the two curves separating the total area like this:

\int_{-4}^3 |\sqrt{12-x} - (-x)| dx +\int_{3}^{12}|-\sqrt{12-x} -\sqrt{12-x}|dx

\int_{-4}^3 |\sqrt{12-x} + x| dx +\int_{3}^{12}|-2\sqrt{12-x}|dx

We can separate the integrals like this:

\int_{-4}^3 |\sqrt{12-x} dx +\int_{-4}^3 x +2\int_{3}^{12}\sqrt{12-x} dx

For this integral \int_{-4}^3 |\sqrt{12-x} dx we can use the u substitution with u = 12-x and after apply and solve the integral we got:

\int_{-4}^3 |\sqrt{12-x} dx =\frac{74}{3}

The other integral:

\int_{-4}^3 x dx = \frac{3^2 -(-4)^2}{2} =-\frac{7}{2}

And for the other integral:

2\int_{3}^{12}\sqrt{12-x} dx

We can use the same substitution u = 12-x and after replace and solve the integral we got:

2\int_{3}^{12}\sqrt{12-x} dx =36

So then the final area would be given adding the 3 results as following:

A = \frac{74}{3} -\frac{7}{2} +36 = \frac{127}{6} +36 = \frac{343}{6}

6 0
3 years ago
If the volume of a box is 1,463,000 cubic millimeters, what is the volume of the box in cubic meters? (1 millimeter = 0.001 mete
Stells [14]

Answer:

The volume of the box would be  0.001463 cubic meters

Step-by-step explanation:

You first have to to do the conversion from cubic milimiters to cubic meters using the rule given. A cubic milimiter is only 1^3 = or 1*1*1. We transform then this rule so it applies for cubic measures.

1 millimeter = 0.001 meter

(1 millimeter)^3 = (0.001 millimeter)^3 (raise to the cubic power)

1 cubic milimiter = (0.001*0.001*0.001) cubic meters= 0.000000001 or 1 * 10^-9 in scientific notation.

Then we us a rule of three as follows

1 cubic millimiter / 1 * 10^-9 cubic meters =1,463,000¨cubic milimiters / x cubic meters

x = 1,463,000*1 * 10^-9= 0.001463 cubic meters

8 0
4 years ago
Other questions:
  • A restaurant decides to test their oven's thermostat to see if it is working properly, that is, if the actual temperature inside
    5·2 answers
  • A population of fish starts at 8,000 and decreases by 6% per year. what is the population of fish after 10 years?
    14·2 answers
  • What f(x)=5x^2+7x-3 degree
    14·1 answer
  • What is 2/5 of 8? Helllllllllllllllllllllllllppppppppppppppppppppppppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    11·2 answers
  • TVs are described by the length of their diagonals. The diagonal of a TV is
    9·1 answer
  • Please help!!!!!!!!! Is for today I need helppppp
    5·1 answer
  • 15. A boat is sailing at a bearing of 140° with a speed of 26 mph. It hits a current of 8 mph at a bearing of 195º. Find the res
    8·1 answer
  • Pls pls pls help! And thank you so much
    13·1 answer
  • Jack decides to invest $300 per quarter into an annuity. How long would he have to keep investing if the annuity is paying 8% an
    13·1 answer
  • What is the value of the digit 8 in the number 78000? please no links​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!