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
nignag [31]
3 years ago
12

a train makes a trip at 65 mi/h. A plane traveling 130 mi/h makes the same trip in 3 fewer hours. Write and solve an equation to

find the distance of the trip.
Mathematics
1 answer:
Rudik [331]3 years ago
8 0

The formula used for calculating the time is:

t = d / v

where t is time, d is distance and v is velocity

 

We know that the difference in the two times is 3 hours, therefore:

d / 65 – d / 130 = 3

 

Calculating for d:

d = 30 / (1/65 – 1/130)

<span>d = 3900 miles</span>

You might be interested in
PLEASE HELP ILL GIVE BRAINLIEST Sara is making a cake in a trapezoid
alukav5142 [94]

Answer:

D im not sure just my opinion

5 0
2 years ago
HELP HELP HELP PLEASE ASAP
Vadim26 [7]

Answer:

0.37 feet.

Step-by-step explanation:

The following data were obtained from the question:

Volume (V) = 4100 ft³

Height (h) = 1.8 miles

Radius (r) =?

Next, we shall convert 1.8 miles to foot.

This can be obtained as follow:

Recall:

1 mile = 5280 ft

Therefore,

1.8 miles = 1.8 × 5280 = 9504 ft

Finally, we determine the radius as follow:

Volume (V) = 4100 ft³

Height (h) = 9504 ft

Pi (π) = 3.14

Radius (r) =?

V = πr²h

4100 = 3.14 × r² × 9504

4100 = r² × 29842.56

Divide both side by 29842.56

r² = 4100/29842.56

Take the square root of both side

r = √(4100/29842.56)

r = 0.37 ft

Therefore, the radius of the hole is 0.37 feet.

7 0
3 years ago
Solve the inequality.<br> I need help please.<br> -11.6&gt;6.7+4.3+m
satela [25.4K]
First, combine like terms:

(6.7+4.3= 11)

-11.6>11+m
isolate m on one side
-11.6-11>m
=
m<-22.4
6 0
3 years ago
What is the remainder R when the polynomial p(x) is divided by (x + 1)? Is (x + 1) a factor of p(x)? p(x) = -3x4 + 2x3 - x2 + 6
vodka [1.7K]

Answer:

(x+1) is a factor with remainder 0.

Step-by-step explanation:

We divide (x+1) into the polynomial -3x^4+2x^3-x^2+6 through long division or synthetic. We choose long division and look for what will multiply with (x+1) to make the polynomial -3x^4+2x^3-x^2+6 .

(x+1)(-3x^3)=-3x^4-3x^3

We subtract this from the original -3x^4-(-3x^4)+2x^3-(-3x^3)-x^2+6.

This leaves 5x^3-x^2+6. We repeat the step above.

(x+1)(5x^2)=5x^3+5x^2.

We subtract this from 5x^3-(5x^3)-x^2-(5x^2)+6=-6x^2+6. We repeat the step above.

(x+1)(-6x)=-6x^2-6x.

We subtract this from -6x^2-(-6x^2)+0x-(-6x)+6=6x+6. We repeat the step above.

(x+1)(6)=-6x+1.

We subtract this from 6x-(6x)+6-(6)=0. There is no remainder. This means (x+1) is a factor.


7 0
3 years ago
What is an outlier mmkay
weeeeeb [17]
In statistics, an outlier is an observation point that is distant from other observations. These extreme values need not necessarily impact the model performance or accuracy, but when they do they are called “Influential” points. Note: An outlier is a data point that diverges from an overall pattern in a sample.
3 0
2 years ago
Read 2 more answers
Other questions:
  • Help me please 10 points
    15·1 answer
  • Is 29 prime or composite
    11·2 answers
  • If ad = 16 and ac = 4y - 44, find the value of y then find ac and dc​
    14·1 answer
  • This figure is 14 of a circle.
    10·2 answers
  • The length of a rectangle is 12 cm more than its width. Find the
    5·1 answer
  • The table shows the charges for using an internet service. Nicholas use the internet service for 16 hours and 40 Minutes last mo
    10·1 answer
  • If 8 pigs can fit in a pen, how many pens are necessary to make sure 71 pigs are all in a pen?
    6·1 answer
  • The endpoints of a diameter of a circle is (-1,3) and (3,1). Find the center and radius of the circle.
    6·2 answers
  • What is the median of this data set?
    12·1 answer
  • Evaluate the expression for n = 8.<br> 6(n + 1) =?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!