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
Airida [17]
3 years ago
7

Joseph drove for hours at the speed of 40 km per hours he changed his speed to 65 km for the next 2 hours how far had Joseph dri

ven in km
Mathematics
2 answers:
Margarita [4]3 years ago
7 0
I’d go with the answer from the top it seems reliable
daser333 [38]3 years ago
6 0

Answer:

The answer to your question is 450 km

Step-by-step explanation:

Data

First stage                      Second stage

speed 1 = 40 km/h         speed 2 = 65 km/h                      

time 1 = 8 h                     time 2 = 2 h

Process

1.- Write the formula to calculate the speed

    speed = distance / time

-Solve for distance

    distance = speed x time

2.- Calculate the distance of the first stage

    distance 1 = 40 x 8

    distance 1 = 320 km

3.- Calculate the distance of the second stage

    distance 2 = 65 x 2

    distance 2 = 130 km

4.- Calculate the total distance

    Total distance = 320 + 130

                             = 450 km

You might be interested in
a rectangular prism has a volume of 810 cubic meters. it has a length of 10 meters and a width of 9 meters. What is the height o
Ainat [17]

Answer:

The height of the prism is 9 meters

Step-by-step explanation:

* Lets describe the rectangular prism

- The rectangular prism has six rectangular faces

- Two of them are bases and the other four are side faces

- The rectangular prism has three dimensions length, width , height

- The volume of any prism = Area of the base × its height

∵ The base of the rectangular prism is a rectangle

∵ Area any rectangle = length × width

∴ The volume of the rectangular prism V = length × width × height

* Lets solve the problem

∵ The volume of the prism is 810 meter³

∵ Its length is 10 meter

∵ Its width is 9 meters

∵ V = length × width × height

- Substitute the values of the volume , the length and the width in

 the equation of V

∴ 810 = 10 × 9 × h

∴ 810 = 90 × h

- Divide both sides by 90

∴ 9 = h

∴ The height of the prism is 9 meters

6 0
3 years ago
Please I need help with #9! Will reward the brainliest answer!!
jenyasd209 [6]
The expression that represents the number of days until only 10% remains is

T((d) 10%) = 100 • (1/2)^3.322
5 0
3 years ago
Graph ∆KLM with vertices K(2,2), L(0,- 1), and M(-3,2). Graph ∆K'L'M' with a scale factor of 2. What are the coordinates of the
olasank [31]

Answer:

The coordinates of the new vertices are:

K'(4,4), L'(0,- 2), and M'(-6,4).

Step-by-step explanation:

In order to dilate a shape by 2, you can simply multiply the coordinates of the orignal triangle each by 2 to find the new coordinates of the new vertices.

K(2,2), L(0,- 1), and M(-3,2)

K'(2*2,2*2), L'(0*2,- 1*2), and M'(-3*2,2*2).

Now become...

K'(4,4), L'(0,- 2), and M'(-6,4).

You can now graph ∆K'L'M' using these coordinates.

5 0
2 years ago
5x+3y=17 x+y=4 substitution
solmaris [256]
Group the xs and the ys, 17+5= 22x 3+1=4y so y=4 and x=22.
4 0
2 years ago
I don’t know if I should put the parentheses around the number 4 or not
tresset_1 [31]

Answer:

you only put a parenthesis around a number if it is negative

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • 54 cans of food during the food drive if there are 29 classes in the school what was the least number of cans collected
    5·1 answer
  • if 9 people share 5 pizzas equally each person receives a fraction of the whole what fraction describes what each person receive
    8·1 answer
  • Which of the following is the most appropriate unit to describe the rate at which a person reads?
    11·1 answer
  • I need answers 3-4 for please I’ll give a thanks
    5·2 answers
  • 3(x+7)=6(x+2) help plz!!
    11·2 answers
  • What is the best way to get my answers?
    11·1 answer
  • A 13-ft padder leans against the side of a housem the bottom of the ladder is 10 ft from the side of the house. How high is the
    9·1 answer
  • Probability...
    10·1 answer
  • X-7;x=23. I NEED help
    11·2 answers
  • Which of the following trigonometric ratios are correct?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!