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
Write a ratio for the follow description : Kaleel made three times as many baskets as many baskets as john during basketball pra
Igoryamba
If you’re doing Kaleel to John (not the other way around), you could have 3:1, 3/1, or 3 to 1. Hope this helps!
5 0
3 years ago
Which expression is NOT equal to 28?
Temka [501]

Answer:

aaaaa

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Write the sentence as an equation.<br> c is 256 subtracted from g
romanna [79]

Answer:

c = g - 256

Step-by-step explanation:

The word "is" indicates an equal sign, and saying you take 256 from g is g - 256.

3 0
3 years ago
Complete the equations so that the solution of the system of equations is (−1, −4). y= ?X−11 6x− ? Y=10
eimsori [14]

Answer:

y = –7x – 11

6x – 4y = 10

Step-by-step explanation:

From the question given above, we obtained:

x = –1

y = –4

y = ?x – 11 ....... (1)

6x – ?y = 10b......... (2)

Let the two unknown be a and b. Thus the above equation becomes:

y = ax – 11 ......... (3)

6x – by = 10 .......(4)

Next, we shall determine the value of 'a' and 'b'. This can be obtained as follow:

For a:

y = ax – 11

x = –1

y = –4

–4 = a(–1) – 11

–4 = –a – 11

Collect like terms

–4 + 11 = –a

7 = –a

Multiply through by –1

a = –7

For b:

6x – by = 10

x = –1

y = –4

6(–1) – b(–4) = 10

–6 + 4b = 10

Collect like terms

4b = 10 + 6

4b = 16

Divide both side by 4

b = 16 / 4

b = 4

Finally, we shall substitute the value of a and be into equation 3 and 4 respectively.

y = ax – 11

a = –7

y = –7x – 11

6x – by = 10

b = 4

6x – 4y = 10

Therefore, the complete equation are:

y = –7x – 11

6x – 4y = 10

8 0
2 years ago
Work out the area of this circle witha diameter of 14cm give your answer in terms like and state its unit
zmey [24]

Answer:

154cm2 (rounded to the nearest one)

Step-by-step explanation:

its just the radius (half the diameter) squared (times by itself) then times by pi π, simpified, πR2

5 0
2 years ago
Read 2 more answers
Other questions:
  • The sign of the product of 2 integers with the same sign is positive. what is the sign of the product of 3 integers with the sam
    11·1 answer
  • Can someone explain major and minor arcs in relation to circles.
    8·1 answer
  • A system of equations is given below. y=1/2x-3 and -1/2x-3. Which of the following statements best describes the two lines?
    14·2 answers
  • A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particul
    6·1 answer
  • HELP PLS KIND PPL✨
    12·1 answer
  • The parent function is f(x)=2^x-1 +3 and the new function is g(x)=2^x+2 +5
    7·1 answer
  • Write and solve an inequality, You want to save at least $100. How much do you need to save if you start with $37?
    5·1 answer
  • Simplify this algebraic expression y=3/3+12
    14·1 answer
  • What is the measure of each angle if x = 13?
    11·1 answer
  • Andrew has 3 1/6 rows of plants left to water. If Andrew has 9/10 gallons of water in his bucket, how many gallons of water can
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!