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

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Answer:

750

Step-by-step explaintion

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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:

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

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Answer:

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Step-by-step explanation:

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

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17.2 cm

Step-by-step explanation:

What is the area of the composite shape?

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Answer:

Step-by-step explanation:

Area of rectangle = 5*4

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

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

Robin, Ashley, Joy, and Christina collected 156 acorns to make fall decorations. Robin collected three times as many acorns as Ashley.Christina
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PLEASE HELP

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Answer:12

Step-by-step explanation:

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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.

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

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

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Answers

Answer:

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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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Answers

Answer:

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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

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            0.24

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Answers

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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

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Answer:

r=-24

Step-by-step explanation:

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

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Step-by-step explanation:

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Answer:

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Answers

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Answers

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Answers

190% of 20 is 38.

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Answers

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Step-by-step explanation:

what is the slope?

Khan Academy ​

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Answer:

2

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

symbolab.com

Find the total surface area of the prism below​

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Do not click that link

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%)

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

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
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