A diesel train traveled to the repair yards and back. It took two hours longer to go there than it did to come back. The average speed on the trip there was 70 km/h. The average speed on the way back was 80 km/h. How many hours did the trip there take?

A) 15
B) 16
C)25
D) 10

Answers

Answer 1
The answer is B 16hrs

Related Questions

Use the Distributive Property to simplify the expression.

6(s-9)

Answers

Answer: 6s-54

Step-by-step explanation:

6(s-9) - [simplify]

= (6)(s + -9)

= (6)(s)+(6)(-9)

= 6s-54

The simplified form of the given expression is 6s-54.

The given expression is 6(s-9).

What is Distributive Property?

It is used to solve expressions easily by distributing a number to the numbers given in brackets. That is, a(b+c)=ab+ac

Now, 6(s-9)=6×s-6×9

=6s-54

Hence, the simplified form of the given expression is 6s-54.

To learn more about the Distributive Property visit:

https://brainly.com/question/5637942.

#SPJ2

An exponential function has the equation y = (0.5)^x-1. Four points from a different function as shown in the table. For what values of x will two functions be equal?

Answers

Answer: f(x) = 64 * (3/4)^x

Step-by-step explanation: f(x)=ab^x

When x=0 f(x) = 64

64 = ab^0

b^0 =1 so

64 =a

f(x)=64 b^x

When x=1 f(x) = 48

48 = 64 *b

Divide by 64

48/64 =b

6/8 =b

3/4 =b

f(x) = 64 * (3/4)^x

Can someone help me
PQR is similar to XYZ

Answers

Answer:

D. 126

Step-by-step explanation:

30 ÷ 5 = 6

5 * 6 = 30

6 * 6 = 36

10 * 6 = 60

60 + 30 + 36 = 126

i think it’s 126..hope this helps

I need help plz
I will give you 50 points if it is right

Answers

Answer:

a and c

Step-by-step explanation:

so we know that -2 is the greatest number in this inequality and with that, the 'equation' would look like this-

x<-2

now let us solve a-d-

0.25-2.50=-2.50

-4.25-(-2.75)=-1.5

-3.25-1.75=-5

-4.50-(-5.25)=0.75

**with negative numbers the 'smaller' the number is the greater it actually is ex. -2.50<-1** it works this way because the 'larger' the number gets the further away it becomes from 0 or whole numbers making it smaller than the negative numbers closer to zero such as -1**

hopefully, that makes sense

now let us see which equations fit our inequality- **we'll let the bolded ones mean that they fit the inequality**

a)-2.50<-2

b)-1.5<-2

c)-5<-2

d)0.75<-2

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

Please help me and serious answers only!

Answers

Answer:

5(2c - 3) = 3(3c - 5)

=> 10c - 15 = 9c - 15c

=> 10c+15c = 9c + 15c

=> 25c = 24

=> c = 24/25

Answer:

c=0

Step-by-step explanation:

Remove the parentheses

10c - 15 = 9c - 15

10c = 9c

Move the variable to the left

10c-9c=0

Collect like terms

then solve it and you'll get c=0

Hope this helps.

The circumference of a circular garden is 128.74 feet. What is the diameter of the garden? Use 3.14 and do not round your answer.

Answers

Answer:

41 feet

Step-by-step explanation:

For a radius r, the circumference is [tex]2\pi r[/tex] and the diameter is [tex]2r[/tex], so to get diameter, we can just divide the circumference by pi and we get the answer. Using 3.14 for pi we get:

[tex]127.74 / 3.14 = 41[/tex]

41 feet 128.74 divided by 3.14

Plz Help (' O_O ') i need it in a little bit but plz help me

Answers

Answer:

7 units i'm pretty sure.....

Step-by-step explanation:

Tell me if i'm wrong.

Answer:

If it's asking for the slope, it is -4/7.

Step-by-step explanation:

This is what my teacher would ask for. I don't really understand what it is asking. Hope this helps!

!! PLEASE HELP, 35 POINTS !!

What is the value of x?

Answers

Since you’re looking for a total of 90 degrees, the 30 already makes up a 3rd of it. Which leaves 60 degrees left. To find what X is, divide 60 degrees by the 4. Which would come out to be X equals 15
It’s 15 just divide the 30 and you’ll get 15

Which table(s) show x and y in DIRECT PROPORTION

A) A and B only

B) B and C only

C) C and D only

D) D and A only

Answers

Answer:

B and C only show direct proportion

b)
- b and c only
hope this helps

Can u plsss help its just box plots :)))))

Answers

Answer:

The median is 22

Answer: 22

Step-by-step explanation:

The line in the middle of the rectangle in the box plot represents the median. That line is at 22 on the number line below it.

The figure is made up of a semicircle and a triangle. Find the perimeter. Round your answer to the nearest hundredth. 25 ft 7 ft 24 ft The perimeter is about feet​

Answers

120.27 or rounded to the nearest tenth is 120.3

Which name does NOT appear to describe this quadrilateral?
a.square
b. trapezoid
c. rhombus
d. parallelogram


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer: Well the image looks like a square so what does not appear to describe this quadrilateral is B; trapezoid. I just don’t know how to explain this but I think it is B. Sorry if I’m wrong but hope this helps.

Please help me and only answer if you are 100% sure it is correct, it affects my grade. I will mark you brainly if you get it right. NO LINKS.

Answers

Answer:

1256, 125.6 (this is wrong sorry i didn't know that it wasn't a full circle)

Step-by-step explanation:

A) The area that the sprinkler is spraying is in a circle with a radius of 20 ft. The formula to find the area of a circle is pi*r^2, so the area of this circle will be 400pi (substitute 20 for r). Pi in this problem is 3.14, so 400*3.14 is 1256 feet.

B) The perimeter of the spray is technically just the circumference of the circle. The circumference is 2r*pi, so we substitute 20 for r again and we get 40pi. Again, pi is 3.14 in this problem, so 40*3.14 is 125.6 feet.

Write the solution to the equation as a decimal. 2x = 3

Answers

Answer:

x = 1.5

Step-by-step explanation:

2x = 3

divide both sides by 2

x = 3/2

3 divided by 2 is 1.5 so

x = 1.5

Answer:

1.5

Step-by-step explanation:

[tex]2x = 3 \\ \frac{2x}{2} = \frac{3}{2 } \\ two \: cancle \: by \: two \: then \\ x = \frac{3}{2 } \\ x = 1.5[/tex]

please help i really need this

Answers

Answer:

ok put me brainliest  please

its 215$

Step-by-step explanation:

$215 is the answer

Hope it helps

A store is advertising a sale with 15% off all prices in the store. Sales tax is 8%. Which equation will correctly determine the total cost, C, of buying an item with an original price of p, after the discount and sales tax are included? Select all that apply. A )C= 1.08p - 0.15p
B )C = 1.15p + 0.08p C
C) = 1.08(0.85p)
D)C=0.85p + (0.08)0.85p
E )C-p - 0.15p + 0.08p​

Answers

I think the answer is c beacause you have to multiply to get the answer

please help I will appreciate it

Answers

Answer:

c. no solution

Step-by-step explanation:

i hope this helps :)

Answer:

c

Step-by-step explanation:

they are parallel so they won't intercept. therefore they won't have a solution

What is the value of x?

Answers

90 I think I really could be wrong and if I am I am super sorry
I believe it’s 90. Not sure though.

If the simple interest on a principal amount of $6000 for 7 years is $2,520, then what is the interest rate as a percent?

Answers

Answer:

6%

Step-by-step explanation:

first multiply $6000 by 7 years then divide 2520 by 42000 to get 0.06

6% because interest= principal amount x rate x time / 100

So 2520=6000xRx7 / 100 = 6%

Explain how to solve the equation and how to check the solution. 40 = 8y

answer is
Use the inverse operation to isolate the variable. Undo multiplication by dividing by 8 on both sides of the equation. Simplify by completing the divisions, 40 ÷ 8 = 5, and 8 ÷ 8 = 1. The solution is y = 5. Check the solution by substituting 5 for y in the original equation, and then simplify. 8 × 5 = 40 and 40 = 40 is a true statement, so 5 is the solution.

Answers

Answer:

U already know the answer, then why ask?? I'll explain it once again, tho :)

Step-by-step explanation:

40 = 8y

40 ÷ 8= y

5 = y

~~~

Answer:

equations by using inverse operations, including squares, square roots, cubes, ... A pair of inverse operations is defined as two operations that will be ... The following examples summarize how to undo these operations using their ... x is divided by 2, so we multiply by 2 on both sides. 2. 8 2. 2 x. ∙ = ∙. Solution: 16. explanation:

Step-by-step explanation:

I NEED HELP ASAP PLEASE HELP ME!! NO LINKS OR I WILL REPORT

Answers

53 because 8/2=4+7^2=53
It’s 53 the answr is 53

Francisco is playing a game with 3 green, 2 yellow, 4 red, and 3 black marbles in a bag. He has calculated the probability of drawing a yellow marble, not replacing it, and then drawing a red marble. Explain the error in his solution.

(StartFraction 2 over 12 EndFraction) (StartFraction 4 over 12 EndFraction) = StartFraction 8 over 144 EndFraction

pls help!

Answers

Answer:

mag sagot ka module mo yan

Answer:

The probability is not 4/12 for the red marble, but 4/11

Step-by-step explanation:

Francisco calculated to probability of drawing a yellow marble correctly, but since he isn't replacing it, the amount of marbles in the bag is not 12, but 11. Since there are 4 red marbles, the probability is 4/11

The floor plan for a house is shown.Vertical lengths and horizontal lengths are given.

A drawing shows the floor plan for a house. The house is composed of three rectangles. The first rectangle is twenty feet long and twenty-four feet wide. The second rectangle is twenty-four feet long and eight plus twenty-four plus eight feet wide. The third rectangle is twenty-eight feet long and twenty-four feet wide.

What is the floor area in square feet?

Answers

I think 480 + 960 + 672 = 2112

pls help asappppppppppppppppppppppppppppppppppp

Answers

They sold 168 pizzas.
Multiple 4 by 12 (a dozen). That’s how many they sold that afternoon. In the afternoon they sold 2.5 times 48 pizzas. that gives you 120. They sold 48 in the afternoon and 120 that night. You would add those in order to get how many they sold that day: 168. Let me know if you have any questions :)
168 pizzas because I did this before and got it right:)

what's 8. +. 8. ???????????

Answers

Answer:

16

Step-by-step explanation:

do u have the answer...............

Grades on a science test are shown in the box plot below.
Find the correct data that the box plot represents.


A) 78, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 95

B) 55, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 95

C) 78, 81, 45, 75, 76, 91, 100, 63, 80, 87, 91, 95

D) 78, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 110

Answers

I think the answer will be A
The answer for this question i think is a
Hope this helps!

I NEED HELP ASAP PLEASE HELP ME!! NO LINKS OR I WILL REPORT

Answers

Answer:

27

Step-by-step explanation:

5(6)-6/2

I WILL GUVE BRAINLIEST!!!!

Answers

Answer:

[tex]92\ yd^2[/tex]

Step-by-step explanation:

The given figure is a trapezoid, the formula for finding the area of a trapezoid is the following,

[tex]A=\frac{h(b_1+b_2)}{2}[/tex]

Where (h) is the height of the figure, and ([tex]b_1[/tex]) and ([tex]b_2[/tex]) are the bases. It is given that the height is (8) and ([tex]b_1[/tex]) is (8). The value of ([tex]b_2[/tex]) can be found by adding the value of ([tex]b_1[/tex]) to the "overhang" that ([tex]b_2[/tex]) has over ([tex]b_1[/tex]). Thus, ([tex]b_2[/tex]) is ([tex]8+7[/tex]) or rather ([tex]15[/tex]). Now substitute the values into the equation and solve for the area of the trapezoid,

[tex]A=\frac{8(8+15)}{2}[/tex]

[tex]=\frac{8(23)}{2}[/tex]

[tex]=4(23)[/tex]

[tex]=92[/tex]

Many games involve chance and they usually involved either dice or cards. For this activity, we will look at a common game called 7‐11 where two dice are rolled. If the roll adds up to 7 or 11, the player wins. If the roll adds up to 2, 3, or 12, the player loses. If there is any other sum, it is a draw (no winner or loser). Use this two‐dice roll scenario to complete the problems below.

1. Create a tree diagram to determine all the possible outcomes of rolling two dice.

Answers

I’m going to categorize them of how you win or lose.

Win: 3 +4, 6+1, 2+5, 5+6
Loses: 1+1, 2+1, 6+6
Draw: 1+3, 2+2, 3+2, 4+1, 3+3, 1+5, 4+2, 3+5, 4+4, 6+2, 3+6, 4+5, 4+6, 5+1, 5+2, 5+5

Find the area of the composite polygon below if each square unit has a length of 1 unit.


A: 99 units

B: 56 units

C: 143 units

D: 127 units

Answers

I think the answers A
I think the answer is A I’m pretty sure
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