From points A and B, the distance between which is 1020 mi, two trains left simultaneously towards each other. The speed of one train was 10 mph greater than the speed of the other one. In 5 hours the trains had

Answers

Answer 1

Complete question :

From points A and B, the distance between which is 1020 mi, two trains left simultaneously towards each other. The speed of one train was 10 mph greater than the speed of the other one. In 5 hours the trains had not met yet and were 170 mi apart. Find the speed of the trains.

Answer:

Train A = 80 miles per hour

Train B = 90 miles per hour

Step-by-step explanation:

Given that :

Distance between A and B = 1020

Let the speed of A = x

Speed of B = x + 10

Since they both left simultaneously;

Distance traveled after 5 hours will be :

Distance = speed * time

A = x * 5 = 5x

B = (x + 10) * 5 = 5x + 50

After the distance traveled by each of A and B, they are still 170 miles apart

Hence, distance covered after 5 hours ;

Total miles - miles left

1020 - 170 = 850 miles

Hence,

5x + 5x + 50 = 850

10x = 850 - 50

10x = 800

x = 80

Train A = 80 miles per hour

Train B = 80 + 10 = 90 miles per hour


Related Questions

Is 10, 24, and 13 a Pythagorean triple?

A. yes
B. cannot tell
C. no​

Answers

Answer:

C. no

Step-by-step explanation:

What is the volume of a sphere with a radius of 6 inches ​

Answers

Answer:

904.78 in I think but I'm not 100%

Answer:

V≈904.78

Step-by-step explanation:

V=4/3[tex]\pi[/tex][tex]r^{3}[/tex]

V=4/3[tex]\pi[/tex](6)^3

V≈904.78

I'm pretty sure this is correct.

I need help please ​

Answers

Answer:

no solution, these are parallel lines b/c same slope

Step-by-step explanation:

rewrite first one to = y : y = 3x + 10

3x + 10 = 3x - 6

please help!! thank you

Answers

Answer:

28/15

Step-by-step explanation:

17/5 x 2/3 28/15

Answer:

The answer is 34/15

Step-by-step explanation:

Convert the mixed number to an improper fraction - 17/5Then multiple 17/5 and 2/3 and you get 34/15

If you don't know how to change mixed numbers you multiple the denominator and the number on the outside. After you get the answer you add the numerator to the sum.

Cheryl fenced in a rectangular kennel and used more fence to divide it into six equally sized sections for her dog i


h is friends as shown. The length of each section is 2 feet more than 3 times its width.


T


If the total amount of fence used for the kennel is 113 feet, what is the area of each section?


Enter the value of the answer in the first blank and enter the units in the second.


Enter your answer in decimal form. Round to the nearest tenth if rounding is necessary.


Enter units as ft., square ft., or cubic ft.

Answers

Answer:

The area of each section of the kennel is 33 square ft

Step-by-step explanation:

The given parameters for the fencing are;

The length of each section, L = 2 ft + The width, 3×W

The total amount of fencing = 113 feet

The The total perimeter of the kennel = 12·W + 7·L = 113

Were we are given L = 2 + 3·W

By substitution, we have;

12 × W + 7 × (2 + 3·W) = 113

33·W + 14 = 113

33·W  = 113 - 14 = 99

W = 99/33 = 3

W = 3 ft.

L = 2 + 3·W = 2 + 3 × 3 = 11

L = 11 ft.

The area of each section of the kennel, A = L × W = 3 × 11 = 33 square ft.

The area of each section of the kennel = 33 square ft.

PLEASE HELP!! 15 POINTS FOR THE CORRECT ANSWER (NOT POINT D)

Answers

Answer:

I do not see any question and we only get 5 points.

Step-by-step explanation:

PLS help guys dont do it for the points and you have to find the sum

Answers

Answer:

12/15 or 4/5

Step-by-step explanation:

4+1+7=12

All three fractions have common denominator which is 15

Answer:Exact Form 4/5

Decimal form: 0.8

or it is 8/10, 12/15, 16,20, 20/25 and 24/30

The area of a square is 1,521 cm2. Find the length of a side of the square by
prime factorisation method.​

Answers

9514 1404 393

Answer:

  39 cm

Step-by-step explanation:

  1521 = 3·3·13·13 = (3·13)² = 39²

The length of the side of the square is 39 cm.

‼️Help please‼️
A tank full of water is leaking at a constant rate for 30 minutes. The equation y= -7x + 300 gives the amount of water in the tank, where y is the number of liters and x is the number of minutes since the tank began to leak. Which statement is true?

Answers

Answer: A

The answer should be A. you probably answered the questoion alr so sorry if you got it wrong

Step-by-step explanation:

it should be A because its not C and D, and B doesnt make sense because it never mentioned anything about 20 minutes.

average rainfall in clearview is 38in
this year 29.777in fell. how much less rainfell this year than falls in a average year?

Answers

Answer: 8.223in less rain fell today.

Step-by-step explanation:

38in. - 29.777in. = 8.223in

Just look at the picture lol.....The equations of three lines are given below. Line 1: 8x-6y=-2 3 Line 2: y=-x-5 4 Line 3: 4y=-3x+3 For each pair of lines, determine whether they are parallel, perpendicular, or neither. Line 1 and Line 2: Parallel O Perpendicular O Neither Х Line 1 and Line 3: O Parallel O Perpendicular O Neither Line 2 and Line 3: Parallel O Perpendicular Neither​

Answers

Answer:

Step-by-step explanation:

We will use the following steps to solve this problem,

Step - (1).

Covert the equations into slope-intercept form.

Step - (2)

If the slopes of the two lines are equal, lines will be parallel.

[tex]m_1=m_2[/tex]

Step - (3)

If the slopes of the two lines are negative reciprocal, lines will be perpendicular.

[tex]m_1\times m_2=-1[/tex]

Line 1: 8x - 6y = -2

          6y = 8x +2

            y = [tex]\frac{4}{3}x+\frac{1}{3}[/tex]

Slope of line 1 = [tex]m_1=\frac{4}{3}[/tex]

Line 2: y = [tex]-\frac{3}{4}x-5[/tex]

Slope of line 2 = [tex]m_2=-\frac{3}{4}[/tex]

Line 3: 4y = -3x + 3

             y = [tex]-\frac{3}{4}x+\frac{3}{4}[/tex]

Slope of line 3 = [tex]m_3=-\frac{3}{4}[/tex]

1). Since, [tex]m_1\times m_2=\frac{4}{3}\times (-\frac{3}{4})=-1[/tex]

   Line 1 and line 2 are perpendicular.

2). Since, [tex]m_1\times m_3=\frac{4}{3}\times (-\frac{3}{4})=-1[/tex]

   Line 1 and line 2 are perpendicular.

3). Since, [tex]m_2=m_3=-\frac{3}{4}[/tex]

   Line 2 and line 3 are parallel.

Olympi
During the 1996 Summer Olympics in Atlanta, Georgia
the American athlete Michael Johnson set an
and world record in the men's 200-meter run. He finishe
the race in 19.32 seconds, breaking the previous Olympi
record of 19.75 seconds. By how much did Micha
Johnson break the previous Olympic record?

Answers

Answer: he broke the record by 0.43 seconds

Find the slope and y-intercept for the table.



slope:

y-intercept:

Answers

Answer:

Slope is 3

y-intercept is 2

If f(x) = 2x – 1 and g(x) = f(x + 1), how does the graph of g compare with the graph of f?
O
A. g is a horizontal translation of f by 0 units.
B. g is a horizontal translation off by 1 unit.
C. g is a horizontal translation of f by 2 units.
D. g is a horizontal translation off by 3 units.
PLEASE HELP ME ASAP DUE IN A FEW MINUTES

Answers

Answer:

B

Step-by-step explanation:

the answer is b because the graph will shift to the left by 1 :D

3) The International Space Station takes 644 minutes to orbit Earth 7 times. About how long does each orbit take? I got 92 am I correct to crazy? 100 minutes 95 minutes 90 minutes 80 minutes

Answers

Given:

The International Space Station takes 644 minutes to orbit Earth 7 times.

To find:

The time taken by each orbit.

Solution:

Total time = 644 minutes

Total number of orbits =7

Now,

[tex]\text{Time taken be each orbit}=\dfrac{\text{Total time}}{\text{Number of orbits}}[/tex]

[tex]\text{Time taken be each orbit}=\dfrac{644}{7}[/tex]

[tex]\text{Time taken be each orbit}=92[/tex]

So, the required time is 92 minutes.

Therefore, you are correct and all options are incorrect.

Given the measure of two of the angles, find the measure of the third angle.
P.
S
SAX = 143°
ZPAX = 56°
х
What is the measure of SAP?
(Simplify your answer.)

Answers

Answer:

87°

Step-by-step explanation:

subtract 143-56 to get the remaining angle

What value of x satisfies the equation below? Explain
how you know
-3x = 15

Answers

-3x = 15
————
-3. -3

x= -5

Answer:

x = -5

Step-by-step explanation:

Whoever gives me the correct answers I will give brainlyest.

Carlos walks 3 miles every night for exercise. It takes him exactly 56 minutes to finish his walk.

A) Assuming he walks at a constant rate, write a equation to represent how many miles, y, Carlos can walk in x minutes. (answer can be kept as a fraction or rounded correctly to the nearest hundredths place)

B) How many miles can Carlos walk in 18 minutes? (Your answer should be rounded to the nearest tenths or hundredths place).

Answers

Answer:

its B

Step-by-step explanation:

Because It says how many milescan he walk not how many Did he walk

Solve 2|x + 2| – 3 ≥ 0

Answers

Answer:

2x+1

Step-by-step explanation:

Answer

[tex]x[/tex] [tex]\geq[/tex] [tex]-\frac{1}{2}[/tex]

Step-by-step explanation:

I'm learning this to but I hope this helps :)

Does the following represent a proportional relati
1
2
2
3 10

Answers

Um I don’t believe so but again I could be wrong good luck

Which equation represents a line which is parallel to the line 3x + 8y = - 40 ?

Answers

Step-by-step explanation:

3x + 8y = -40

8y = -40 - 3x

y = -5 - 3/8x

y = -3/8x - 5

Equation that represents a line which is parallel to y = -3/8x - 5 can be any equation as long as it's y = -3/8x + c, as in c can be any value as long as the other parts of the equation is not changed

-37 - 7r = -3(5r - 9)

Answers

Answer:

r=8

Step-by-step explanation:

-37-7r= -15r+27

-7r=-15r+64

8r=64

divide 8

r=8

Answer:

I have the answer:).

Step-by-step explanation:

According to a high-standard calculator, r = 8.

Hope I can help:)!!

f(0) = 3 and f(1) = 15.

Answers

Answer:

Step-by-step explanat

Given=F(0) = 3 and f(1) = 15.

So f(X)=12x+3

When X=0, f(0)=12x0+3=3

When X=1, f(1) = 12x1+3= 15

So f(X)=12x+3 is the solution o

Select all the expressions that have a value of 180 when b = 4.
87b−179+957÷87
33b12
b2+120
51b−24
11b+187−2,756÷13

Answers

87b-179+957/87 = 180

33b12 = 1584

b2+120 = 128

51b - 24 = 180

So the answer are the first one and the last one :)))

Answer:

87b-179+957÷87=180

51b-24=180

Step-by-step explan

marking brainliest for best answer and extra points

Answers

Answer:

B

Step-by-step explanation:

Answer:

B i think

Step-by-step explanation:

The price of an item has risen to $238 today. Yesterday it was $140. Find the percentage increase.
HELP
DONT SWIPE PAST
OH Amy bad for assuming you swiped tysm for helping!!

Answers

Answer:

The percentage increase is 70%

Step-by-step explanation:

There is a calculator that solves the problem for you just enter the 2 values that they ask for

A bus can travel 150 miles in 4 hours, what is the constant of proportionality per hour?

Answers

Answer:

37.5 miles per hour

Step-by-step explanation:

Evaluate each value expression for the given value of x: x-5 , x - =22
pls fast

Answers

Answer:

-18

Step-by-step explanation:

-18

brainlest please

Instructions: Find the measure of the indicated angle to the nearest degree.

Answers

Answer:

23

Step-by-step explanation:

m∠A=cos⁻¹(35/38) = 22.91954215

round your answer to the nearest tenth.

23 degrees is the measure of the indicated angle in the triangle.

What is Trigonometry?

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

The given triangle is a right angled triangle.

The side lengths of triangle are 35 and 38.

We have to find the measure of the angle opposite to the right angle.

By using cosine function formula we calculate it.

CosA=Adjacent side/Hypotenuse

CosA=35/38

m∠A=cos⁻¹(35/38)

= 22.91954215

Hence, 23 degrees is the measure of the indicated angle.

To learn more on trigonometry click:

https://brainly.com/question/25122835

#SPJ7

A survey of Mr. Thorne’s class shows that 5 out of 8 students will buy lunch today. Based on this result, how many of the 720 students in the school will buy today?

Answers

450


5:8.
X:720

8x90=720 so multiply 5x90

450

Number of student lunch today is 450 students

Given:

Fraction of student lunch today = 5/8

Total number student = 720 students

Find:

Number of student lunch today

Computation:

Number of student lunch today = Fraction of student lunch today × Total number student

Number of student lunch today = (5/8) × (720)

Number of student lunch today = (5) × (90)

Number of student lunch today = 450 students

Learn more:

https://brainly.com/question/12816397?referrer=searchResults

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