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
Neko [114]
3 years ago
14

Michaela runs to the end of her street and back in 90 s. Her brother, Jacob, walks to the end of the street and back in 3 min. T

hey both run or walk for the same amount of time, but Michaela makes 5 more trips than Jacob. How many times did each person go to the end of the street and back?
Mathematics
1 answer:
NemiM [27]3 years ago
6 0

Given :

Michaela runs to the end of her street and back in 90 s.

Her brother, Jacob, walks to the end of the street and back in 3 min.

They both run or walk for the same amount of time, but Michaela makes 5 more trips than Jacob.

To Find :

How many times did each person go to the end of the street and back.

Solution :

Let, they both walk for T seconds.

Number of rounds Michaela walk is, n₁ = T/90 .

Number of rounds Jacob walk is, n₂ =T/180 .

It is given that :

n₁ = n₂ + 5

T/90 + T/180 = 5

( T/90 + T/180 ) × 180 = 5×180

2T + T = 900

3T = 900

T = 300 s

So, n₁ = 300/90 = 3

n₂ = 1

Hence, this is the required solution.

You might be interested in
. Which category(s) does 75% belong? I. Real II. Whole III.Rational IV. Integer V. Irrational VI. Natural * A. III and IV only B
kifflom [539]

Answer: B.) 1 and 111 only.

Step-by-step explanation:

75% = 75/100 = 0.75

0.75 falls into the category of rational numbers. Rational numbers comprises of numbers which can be expressed in the form a/b where a and b are integers and B is not 0. Here, both 75 and 100 are integers, thus 75% is a rational number.

Irrational numbers are the opposite of rational numbers thus, 75% is not irrational.

All rational numbers and irrational numbers are REAL numbers, hence, 75% is a real number.

Natural numbers are whole digits starting from 1 e.g ( 1, 2, 3,......). Hence 75% is not a natural number

Whole numbers are natural numbers including 0. (0, 1, 2,.....). Hence, 75% is not a whole number

Integer numbers are comprises of both positive and negative whole numbers. (..., - 1, - 2, 0, 1, 2,...). Hence, 75% is not an integer.

4 0
3 years ago
there are 25 gold paper clips and 75 silver paper clips in each box. How many silver paper clips are in 8 boxes. (THIS IS MULTIP
kirill [66]

Answer:

600

Step-by-step explanation:

75 x 8 = 600

5 0
2 years ago
Read 2 more answers
Six aides work 6-1/2 Hours at $4.00 an hour,what are the total wages
GaryK [48]
You multiply 6.5 *4 =26 then you multiply 26 *6= 156 so that's $156.00.
8 0
3 years ago
Which number line represents the solution set for inequality 3x<-9 ?
vovikov84 [41]

<em>THE</em><em> </em><em>RIGHT</em><em> </em><em>ANSWER</em><em> </em><em>IS</em><em> </em><em>OF</em><em> </em><em>THIRD</em><em> </em><em>OPTION</em><em>.</em>

<em>HOPE</em><em> </em><em>THIS</em><em> </em><em>WILL</em><em> </em><em>HELP</em><em> </em><em>U</em><em>.</em><em>.</em><em>.</em>

5 0
3 years ago
Read 2 more answers
Graph and solve the system <br><br> Y=-3x+3<br> Y=2x-7
guajiro [1.7K]
An equation of the form y=ax+b, where a and b are constants; y and x are variable, is called a linear equation.

They are called "linear" because if we draw all the solutions of such an equation, they form a line. 

This also means that it is enough to:
 
1. find to solutions 
2. plot them on the coordinate axis
3.join those 2 points

and all the solutions of the equation y=ax+b will be on that line.


Thus, to draw line y=-3x+3

let x=0, then y=3, so one solution is (0, 3)

let y=0, then x=1 so a second solution is (1, 0)

(remark we can pick x or y to be any value, then solve for the other)


to draw the second line y=2x-7

let x=0, then y=-7
let x=3, then y=-1


plot these points and join them as shown in the picture.


The solution of the system is the point where the lines intersect, which is
 (2, -3)


8 0
3 years ago
Read 2 more answers
Other questions:
  • Determine,se existir,a inversa da matriz abaixo:<br> A= (1 2)<br> (1 3)
    13·1 answer
  • The cost of a bus for a field trip was split evenly between the 120 students going. But the day before the trip, 30 more student
    13·2 answers
  • Plz help im tired<br> ty
    8·1 answer
  • Two students in your class, Ralph and Bobby, are disputing a function. Ralph says that for the function, between x = −1 and x =
    13·1 answer
  • Would like to know the answer
    15·1 answer
  • Find the value of x in the isosceles triangle shown.​
    10·1 answer
  • What are the major arcs of o0 that contain point B?
    12·1 answer
  • Given that x = 7, what is the value of -2x^0
    7·1 answer
  • Which calculation and answer show how to convert 3/12 into a decimal
    10·1 answer
  • Half of Maria's boxes were destroyed in a fire. She bought seven more boxes.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!