Mathematics High School

PLS HELP ASAP WILL GIVE BRAINlEST AND 100 POINTS
A bus travels from town A to town B. If the bus's speed is 50 km/hr, it will arrive in town B 42 min later than scheduled. If the bus increases its speed by \displaystyle \frac{50}{9}
9
50

m/sec, it will arrive in town B 30 min earlier than scheduled. Find:
A) The distance between the two towns;
B) The bus's scheduled time of arrival in B;
C) The speed of the bus when it's on schedule.

Answers

Answer 1

Answer:

60 km/hr

Step-by-step explanation:

First we will determine the speed of the bus following it's increase. The speed is increased by:

50m/9sec=50.60.60/9/1000 .km/hr=20 km/hr

Therefore, the new speed is V = 50 + 20 + = 70

km/hr. If x is the number of hours according to the schedule, then at the speed of 50 km/hr the bus travels from A to B within ( x + 42/60 ) hr. When the speed of the bus is V = 70 km/hr, the travel time is x -30/60 hr. Then:

50(x+42/60)=70(x-30/60)

5(x+7/10)=7(x-1/2)

7/2+7/2=7x-5x

2x = 7

x=7/2 hr

So, the bus is scheduled to make the trip in 3 he 30 minutes.

The distance between the two towns is 70 ( 7/2 – 1/2 ) = 70 • 3 = 210 km and the scheduled speed is:

270/7/2=60km/hr

PLS HELP ASAP WILL GIVE BRAINlEST AND 100 POINTS A Bus Travels From Town A To Town B. If The Bus's Speed

Related Questions

PLEASE ANSWER FAAST!! A car wheel has a diameter of 20.8 inches. About how far does the car travel in 5 rotations?

Answers

Answer:

65.312 inches

326.56 inches

1959.36 inches

Step-by-step explanation:

Given

d = 20.8 inches

To find

Travel in 1, 5, 30 rotations

Solution

Circumference of the wheel is equal to one full rotation

C = πd = 3.14*20.8 = 65.312 inches

5C = 5*65.312 = 326.56 inches

30C = 30*65.312 = 1959.36 inches

Step-by-step explanation:

Answer:

326.56 inches

Step-by-step explanation:

hope this helps

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Use the slope and y-intercept to write an equation for the red cab.

Answers

Answer:

y=1/4x+6

Step-by-step explanation:

i guess

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Answers

Science Mean is 87.5. Social Studies mean is 88.2. So, option A is the correct answer!

How to solve this triangle, please help me.

Answers

Answer:

sum of angles in a triangle is 180

so 70+60+ 8x+2 = 180

132+ 8x = 180

8x = 180-132

x = 48/8

x= 6

then find the angle by substituting value of x

8x + 2

8*6 + 2

= 50°

what is 2+2=
22.
4.
Baby 2.

Answers

Answer:

2+2 equals 4

Step-by-step explanation:

a) 3∕5= 60∕100= 40% (resolvido) b) 11∕4= c) 4∕20= d) 9∕5= e) 10∕200= 5∕100= 5% (resolvido) f) 8∕200= g) 30∕300=

Answers

Answer:

En cada expresión queremos obtener 100 en el denominador.

Notar que en la primer eq. tendríamos:

a) 3/5 = (20/20)*(3/5) = (20*3)/(20*5) = 60/100 = 0.6 (corresponde a 60%)

b) 11/4 = ?

Acá el denominador es 4

tenemos que encontrar un número k tal que:

k*4 = 100

k = 100/4 = 25

Entonces podemos multiplicar denominador y numerador por 25.

11/4 = (25/25)*(11/4) = (25*11)/(25*4) = 275/100 = 2.75 (corresponde a 275%)

c) 4/20

el denominador es 20, entonces tenemos que resolver:

20*k = 100

k = 100/20 = 5

multiplicamos denominador y numerador por 5:

(5/5)*(4/20) = (5*4)/(5*20) = 20/100 = 0.2 (corresponde al 20%)

d) 9/5

el denominador es 5, entonces debemos resolver:

5*k = 100

k = 100/5 = 20

Debemos multiplicar denominador y numerador por 20

(20/20)*(9/5) = (20*9)/(20*5) = 180/100 = 1.8 (corresponde a 180%)

e) 10/200 = 5/100 = 0.05 (corresponde al 5%)

f) 8/200

Se resuelve de similar forma al de arriba (que ya tenias resuelto).

Aca el denominador eso 200, entonces tenemos que tener:

200*k = 100

k = 100/200 = 1/2

Entonces multiplicamos numerador y denominador por 1/2

(1/2/1/2)*(8/200) = (8*1/2)/(200*1/2) = 4/100 = 0.04 (corresponde al 4%)

g) 30/300

aca el denominador es 300

Entonces:

300*k = 100

k = 100/300 = 1/3

Multiplicamos numerador y denominador por 1/3

(1/3/1/3)*(30/300) = (30*1/3)/(300*1/3) = 10/100 = 0.1 (corresponde al 10%)

Find the total surface area of the prism below

Answers

Do not click that link

Robin, Ashley, Joy, and Christina collected 156 acorns to make fall decorations. Robin collected three times as many acorns as Ashley.Christina
has 12 more acorns than Robin. Ashley and Joy collected the same number of acorns.
How many acorns did Ashley collect?

PLEASE HELP

Answers

Answer:12

Step-by-step explanation:

A chef used 6 cups of flour for every 2 cups of sugar to bake a cake. If he uses 12 cups of sugar, how many cups of flour did he use?

Answers

Answer:

Step-by-step explanation:

2 goes into 12 6 times and 6x6 = 36.

Answer =36 6x6=36 12divided by 2

Can someone help with these 2? number 8 and 9!

Answers

Uh where’s the picture? or what is the question

what is the slope?

Khan Academy

Answers

Answer:

Step-by-step explanation:

Point on the graph: (0, -3) and (3, 3)

Slope:

m=(y2-y1)/(x2-x1)

m=(3+3)/(3-0)

m=6/3

m = 2

Find the value of X
A. 40 degrees
B. 50 degrees
C. 60 degrees
D. 100 degrees

Answers

The value of x from the given figure is 40 degrees

Geometry

Geometry is a way of relating lines and angles using theorems;

circle theorems

To get the value of x, we will use the expression based on the circle theorem:

80 = 1/2(200 - x)

Cross multiply

80 * 2 = (200 - x)

160 = 200 - x

x = 200 - 160

x = 40

Hence the value of x from the given figure is 40 degrees

Learn more on circle theorem here: https://brainly.com/question/25938845

An automatic dog feeder in the shape of a cone has a height of 18 centimeters. If it holds about 8,308 cubic centimeters of dog food, approximately what is its RADIUS?

Answers

21 cm.

V= 1/3 ^2
8308=1/3 (18)
8308/6
=21cm

2y^2-10y^2+9y-45
Factor polynomial completely

Answers

Answer:

-8y^2+9y-45

Step-by-step explanation:

symbolab.com

Choose the angle which is vertical to ∠ in the following figure.

Answers

Answer:

angle DFE

Step-by-step explanation:

can anyone help me with these

Answers

The answer is C

Trust me

Find 190% of 20 (pls help)

Answers

190% of 20 is 38.

To put it simply, multiply 190 by 20 (which is 3800) and get rid of the zeros. Hope this helped! :]

Maria makes money by commission rates. She gets 15% of everything she sells. If Maria sold $23000 worth of items this month, what is her salary for the month?

Answers

To find 15% of 23000,
23000 x (15/100) = 23000 x 0.15 = 3450
So her salary for the month would be $3450.

Answer:

3450$ :)

Step-by-step explanation:

Question 3 (5 points)
Which of the following statements must be true about parallelogram ABCD?

Answers

Answer:

<C = <A

Step-by-step explanation:

In parallelograms, opposite angles are congruent. This means that <C=<A and <B=<D. Additionally, adjacent angles are supplementary; so when added they equal 180.

GameStop pays $12.00 for each Minecraft video game. They markup each game by 40%. What is the selling price?

Answers

Answer:

$16.80

Step-by-step explanation:

12 * 1.4 = 16.8

Answer:

$16.80

Step-by-step explanation:

Find 40 % of 12 by multiplying .05*12 to get $4.80. Add the original price $12 and the price increase $4.80 to get the new selling price of $12

I need an answer ASAP!!

Answers

Answer:

x = 8

Step-by-step explanation:

because wy bisects XZ , XY and ZY are equal so ..

2x+3=3x-5

then x is 8❤

I'm about 90 percent sure that x is 8

what is the lowest common multiple for 150, 250, 375

Answers

Answer:

750

Step-by-step explaintion

150, 300, 450, 600, 750

250, 500, 750

375, 750

Answer:750

Step-by-step explanation:

Which triangle is NLM congruent to? Please answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

XYZ

Step-by-step explanation:

due to the angles being equivalent to eachother(NL angles being equal to XZ). The M and Y are equal to eachother.

I NEED HELP!!
..
Independent Practice

x y

-2 1

3 6

8 11

For the data in the table, tell whether y varies directly with x. If it does, write an equation for the direct variation.

A.

yes; y= −1/2x

B.

yes; y= 1/2x

C.

yes; y= 11/8x

D.

no

THE ANSER IS NOT LETTER C. yes; y= 11/8x

Answers

Answer:

i cant find the answer

Step-by-step explanation:

sorry

last one plz help me

Answers

Answer:

17.2 cm

Step-by-step explanation:

What is the area of the composite shape?

Answers

Answer:

Step-by-step explanation:

Area of rectangle = 5*4

=> 20

Area of hemisphere = [tex]\pi[/tex]r^2 / 2

=> 3.14 * 4 /2

=> 6.28

Total area => 26.28

Please mark my answer as the brainliest for further answers :)

Cann someone pls pls help me with this one ignore the bottom question it was in the way.

Answers

Answer:

r=-24

Step-by-step explanation:

Step1: Add 4 to both sides

-2r - 4 + 4 > 44 + 4

-2r > 48

Step 2: Divide both sides by -2

-2r/ -2 > 48/ -2

r < -24

Charlie split 78pounds of andy among 4 people. What is the unit rate in pounds per person?

Answers

the answer of this is 19.5 pounds

PLS HELP | Shen invested in a savings bond for 4 years and was paid simple interest at an annual rate of 6%. The total interest that he earned was $2160. How much did he invest?

Answers

Answer:

Shen invested $9000.

Step-by-step explanation:

The simple interest formula is i = prt, where p is the principal amuont, r is the annual interest rate as a decimal fraction and t is the time in years.

Here, $2160 = P*0.06*(4 yrs), so:

$2160

P = ----------------- = $9000

0.24

please help i’ll give brainless

Answers

the answer is D. 40% of the fruit in the bowl are apples:)

Answer:

D. 40%

Step-by-step explanation:

The are 6 apples out of 15 fruit. To find the percentage, first write it as a fraction.

6/156/15 can be simplified to 2/52/5=0.4=40%

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