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
gayaneshka [121]
3 years ago
8

(b) The train is 61 cm long and travels at a speed of 18 cm/s.

Mathematics
2 answers:
mixer [17]3 years ago
5 0

Answer:

The length of the bridge is 72 cm

Step-by-step explanation:

In order to find the length of bridge, we have to apply distance formula which is D = S × T where S represents speed and T is time :

d = s \times t

let \: s = 18,t = 4

d = 18 \times 4

d = 72 \: cm

xz_007 [3.2K]3 years ago
3 0

Answer:

It goes 18 cm every second:

18 x 4 = 72 cm

The bridge is 72 cm long.

Hope this helps!

You might be interested in
Solve 1/2 (- 4 + 6n) = (1+9). Check your solution .​
pychu [463]
I think n=4 is the answer
6 0
3 years ago
The length of a string in yards is a function ƒ(n) of the length n in inches. Write a function rule for this situation.
lesya [120]
There are 12 inches in a foot, and 3 feet in a yard, so there are 36 inches in one yard which means that yards = inches/36. So the answer should be: 

<span>f(n) = n/36</span>
8 0
3 years ago
Read 2 more answers
3. A restaurant bill of $350 was paid using $5 notes and $50 notes. The total number of
Sonbull [250]

The number of $5 notes is 10 and $50 notes is 6

Step-by-step explanation:

Let x be the number of $5 notes

and

y be the number of $50 notes

Then according to given statements

"The total number of notes used was 16."

x+y=16    Eqn 1

"A restaurant bill of $350 was paid using $5 notes and $50 notes."

5x+50y=350       Eqn 2

From\ Eqn\ 1\\x+y=16\\y=16-x\\Putting\ y=16-x\ in\ equation\ 2\\5x+50(16-x)=350\\5x+800-50x=350\\-45x+800=350\\Subtracting\ 800\ from\ both\ sides\\-45x+800-800=350-800\\-45x=-450\\Dividing\ both\ sides\ by\ -45\\\frac{-45x}{-45}=\frac{-450}{45}\\x=10

Putting x=10 in equation 1

10+y=16\\y=16-10\\y=6

So,

The number of $5 notes is 10 and $50 notes is 6

Keywords: Linear Equations, Variables

Learn more about linear equations at:

  • brainly.com/question/2385771
  • brainly.com/question/2386054

#LearnwithBrainly

3 0
3 years ago
What is .35 in percent
marta [7]
The answer to your question is 35%
4 0
4 years ago
Read 2 more answers
john's dad gave him 8 3/4 pieces of wood. he used 4 2/3 pieces to make a bird house. his friend david then asked for 1 1/2 piece
Serjik [45]
Ok so this all about subtracting fractions this is what you want to do:

you can change 8 3/4 and 4 2/3 to have the same value and deominator
8 3/4 = 8 9/12(multiply both sides by 3)
4 2/3 = 4 8/12(multiply both sides by 4)
you do this because 12 is divisible by 3 and 4

then, subtract 4 8/12 from 8 9/12 because John is using some of the wood his dad gave him.
then subtract once again, taking 11/2 away from your difference.
again match the deominator of 11/2 to the deominator of your difference which should be 12. another divisible of 12 is 2 and 6.
11/2 = 66/12 = 5 6/12(multiply both the top and bottom by 6)
and start subtracting.

so John should have -1 5/12(?) wood left


3 0
3 years ago
Other questions:
  • Evaluate. <br><br> 1 - 3 times 7 + 4 times 2=<br> A. -12 B. -32 C. -28 D. -20
    13·1 answer
  • Ammon and Nakia volunteer at an animal shelter. Nakia worked 3 more hours than Ammon. They each worked a whole of hours. Togethe
    6·1 answer
  • T/F The centroid of an object must be located on the object.
    8·1 answer
  • Write an expression that has three terms,two different variables, and one constant
    8·1 answer
  • True o r False: y = - 5x + 7 is the equation of a line that passes through the point (3,6) and has a slope of - 5.
    9·1 answer
  • HEY GUYS I HOPE I WAS ABLE TO HELP uuuuuuu today have a great night!!!!!!!!/dayyyy!!!!!!!!!!!!
    12·2 answers
  • The area of a rectangle is 40 square inches. The
    12·1 answer
  • Awnser this question plz
    8·1 answer
  • PLEASE HELP 30 POINTS
    11·1 answer
  • Type the correct answer in each box.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!