a car travels 100 kilometers east in 2 hours and 30 kilometers north in a half an hour. what is the average speed of the car?

Answers

Answer 1

Average speed= total distance covered/total time taken

Total distance=100+30=130k.m

Total time =2+1/2 hour=2.5 hours

Average speed =130/2.5=1300/25=52 km/h

Related Questions

Elijah estimates that 54 students will be at the school dance. Angel estimates that 45 students will be. There are actually 48 students at the dance. How much less is the percent error in Angel's estimate than in Elijah's estimate?

-12.5% less
-6.25% less
-3% less
-65 less

Answers

I believe c- -3% less
(Sorry if wrong) :/

help me please...... i need help

Answers

Answer:

Step-by-step explanation:

Answer: The proportion is 9/w = 25/100

Step-by-step explanation:

Solve by cross multiplying

9 × 100 = 25 × w

900 = 25w . Divide both sides by 25

900/25 = 25w/25

36 = w

It is also possible to use simpler fractions if you remember that 25% is the same as 1/4

9 is 1/4 of w,

9 = w/4 So multiply both sides by 4

4(9) = 4(w/4) . The 4s "cancel" on the right

36 = w

If you have a two-step word problem, is it normal to do 5 steps?
My teacher is making my class to "two-step expressions" but he says to do 5 steps.
Is that normal because it says in its name 2 steps?
Please don't delete this!

Answers

Answer:

Step-by-step explanation:

No, I don’t think it’s normal. I’m curious as to what the other 3 steps would be in a 2-step problem. However, I’m no teacher so I wouldn’t know the curriculum.

△LMN and △NOP similar right triangles. The coordinates of all the vertices are integers.

The slope of LN¯¯¯¯¯ is equal to the slope of NP¯¯¯¯¯¯. This because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is the same for LN¯¯¯¯¯ as for NP¯¯¯¯¯¯

The relationship between the slope of LN¯¯¯¯¯ and the slope of NP¯¯¯¯¯¯ cannot be determined, because the triangles are congruent.

The slope of LN¯¯¯¯¯ is greater than the slope of NP¯¯¯¯¯¯. This is because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is greater for LN¯¯¯¯¯ than for NP¯¯¯¯¯¯.

The slope of LN¯¯¯¯¯ is less than the slope of NP¯¯¯¯¯¯. This is because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is less for LN¯¯¯¯¯ than for NP¯¯¯¯¯¯.

Answers

Answer:sooo what's the question my guy

Step-by-step explanation:

Chris is trimming trees. He can trim 2/3 of a tree in 30 minutes. Complete the table to show how many trees Chris can trim for different number of hours. Drag the answers to the correct spot on the table. 5,4,10,4/3,12,1/2,1 1/3
times 1,3,9

Answers

Answer:

the answer should be 1 1\3 that equals one hour.

Step-by-step explanation:

11/3 one hour I think

A hairstylist schedules 1/4 hour to trim a customer's hair and 1/6 hour to style the customer's hair. The hairstylist plans to work 2 1/3 hours each day for 5 days each week. How many appointments can the hairstylist schedule each week if each customer must be trimmed and styled?

Answers

Answer:

5 3/5

Step-by-step explanation:

5 3/5 is your over all answer for appointments made

Selena babysits on the weekends. The equation y = 12x represents the amount of money she earns. What is the constant of proportionality?

Answers

Answer: According to the question the constant would be 12

Step-by-step explanation: Its 12 because every hour she earns 12 dollars and as the y changes so will the amount of money she earns Ex: y=2 she earns 24 dollars.

Answer - 12

Step by step- She is constantly earning 12 dollars per hour and that factor is never changing therefore it would be the constant of proportionality

Roast beef at a deli sells for $6.40 per pound. A package of the roast beef costs $16.64. How many pounds of roast beef are in the package?

Answers

Answer: 2.56 or 2.5

Step-by-step explanation:

you do 16.64 divided by 6.40

Answer:

2.6 pounds

Step-by-step explanation:

16.64 / 6.40 = 2.6

If this wrong I'm sorry I tried to help

you divide them in order to get of how many pounds of roast beef.

Which number below has a value between 6.6 and 6.7?

√6

√36

√44

√49

Answers

Answer:

square root of 44

Step-by-step explanation:

Someone please help! This is part of my grade :( PLEASE dont answer wrong I’m really serious about my grades

Answers

A. 2.25 x 10 to the 5th power
B. .0012
C. 7.4 x 10 to the negative 4th power
D. 54,600,000

Answer:

A. 2.25*10^5

B. .0012

C. 7.4*10^-4

D. 54,600,000

Step-by-step explanation:

Find the value of x and y

Answers

Answer:

x = 80, y = 122

Step-by-step explanation:

I got this equation by using vertical angles to create a complimentary angle pair (they sum to 90 degrees).

3/4x+2/5x-2=90°,

23/20x - 2=90°,

23/20x = 92°,

92/(23/20)

20/(1/4)

20(4)

= 80.

Since the angles are a linear pair on the left side(they sum to 180 degrees). Just subtract 180 from 3/4x-2 and substitute x into the expression.

180-(3/4(x)-2), 180-3/4(80)+2 = 120+2 = 122

Help meeeeeeeeeeeeee... please dont answer it if u dont know the ans or almost the ans

Answers

Answer: it should be 48%

I asked my teacher and he said that it’s 48%

A technician charges $25 per hour plus $50 for a house call to repair home computers, make a table and a graph to show the cost for 1, 2, 3 and 4 hours of home computer repair service. Is there a direct variation?

Answers

All you have do do is add 50+25 to get the hourly cost then multiply how many hours to get $300 I think

1,615 ÷ 42

Yea a divson prob its easy right I'm just timed two this is 1 minite so plz help

Answers

Answer:

[tex]38\frac{19}{42}[/tex]

I hope this helps!

Answer:

38.4523809524 I believe

PLZZZZZZZZZZZZZZZZZ HELP ME WITH THIS IT DUE TODAY and explain!!!!!
1 is the first image question

2 is second image question

Answers

Your doing it all wrong your answer is 3

Answer:

Step-by-step explanation:

PLZ HLP! I WILL GIVE BRAINLIEST
What is 12 1/2%expressed as a fraction?

Answers

Answer:

13/2?? im not completely understanding

Step-by-step explanation:

Answer:

3/25

Step-by-step explanation:

PLEASE HELP QUICKLY!!!! (2.01)A polygon is shown on the graph: A polygon is shown on a coordinate plane. Vertex A is at 1 comma 5, vertex B is at 0 comma 1, vertex C is at 6 comma 1, and Vertex D is at 5 comma 5. If the polygon is translated 2 units down and 4 units left, what will the coordinates of the new image be? Use prime notation in expressing the new coordinates.

Answers

Answer:

Step-by-step explanation:

In a direct variation, y = 14 when x = 2. Write a direct variation equation that shows the relationship between x and y.

Answers

x is only 2 if y=14 I think is the answer

Problem: Four students tried to write 12x + 3y=9 in equivalent y= mx + b form.
Question: Did each student get an equation that is equivalent to the original Ax + By=C form?
If so, explain the reasoning for each step. If not, tell what errors the students made.
Use google docs to submit this assignment.

Answers

Answer:what grade is this

Step-by-step explanation:

Help please... dont answer if u dont know bc this is for a grade

Answers

Answer: 1/3 and t/9

there are 3 trombones in the orchestra

Step-by-step explanation: it says the ratio of trombones to violas is 1/3 so that’s ur first one and it says there’s 9 violas so there’s ur 2nd one. 9 divided by 3 is 3 so you would multiply 1 by 3 and the answer is 3, making it 3 trombones in the orchestra

The correct answer is 3/9 and t/9

subtract
1 2/5 - (-3/5)
enter your answer in simplest form

Answers

Answer:

it would be 2

1 2/5 - (-3/5) = 2

The answer would be 2.

A farm lets you pick 3 pints of raspberries for $12.00.

1.) What is the cost per pint?
2.) How many pints do you get per dollar?
3.) At this rate, how many pints can you afford for $20.00?
4.) At this rate, how much will 8 pints of raspberries cost?

Answers

Answer:

Step-by-step explanation:

3 pints = $12

1 pint = 12/3 = $4

$1 = 1/4 pint

$20 = 1/4 x 20 = 5 pints

8 pints = $4 x 8 = $32

Answer:1. $4 per pint

2. 0.25 pints per dollar

3. you can afford 5 pints with $20

4. $32 for 8 pints

here is another question for brainliest

Answers

Answer:

Step-by-step explanation:

I think its the third answer choice

Answer:
I think the right answer was B)

its math. i dont know if it easy or not im just confused

Answers

Answer:

1.5 to 2

Step-by-step explanation:

the answer is 3:4 because you have 6 googles and 8 life jackets 6:8 is simplified to 3:4

Please help! Will give brainliest for proper answers! 6-10 needs to be answered

Answers

What is the function of the graph I can help if I know that

The question is in the picture.

Answers

lol there’s no picture

Please help me with this

Answers

The first one you pick goes with 2 and the exponent -5 on the top
The second one you pick goes into I think into the 2 and exponent -32
And the third one you pick goes into the 1
The last one matches with the last one
Ik I might be late or this might not help but

i’m doing the same thing right now!

find the next three terms of an arithmetic sequence -8, -11, -14, -17 find the next three terms

and show all your work which I mean how did u get it and write the formula

Answers

Answer: next three terms: a_5 = -20, a_6 = -23, a_7 = -26

Step-by-step explanation:

Formula: a_n = a_1 + (n-1)d

We need to find the 5th, 6th and 7th term.

a_5 = -8 + (5-1)(-3)

a_5 = -20

a_6 = -8 + (6-1)(-3)

a_6 = -23

a_7 = -8 + (7-1)(-3)

a_7 = -26

+4 each sequence and the three terms

Sandra saves 10% of her salary for retirement. This year her salary was $2,000 more than in the previous year, and she saved $4,200. What was her salary in the previous year?

Answers

Answer:

2200................ here you go

Answer:

2200 :)

Step-by-step explanation:

Could anyone help me with this? (A question I've been wondering about.)

Answers

Xbxhfjtiifixkdjdyfhdkkd 388484

Answer: 1

Step-by-step explanation:

Go with division first (PEDMAS/PEMDAS)

3 divided by 1/3 = 9

Then, do the subtraction.

9-9 = 0

Lastly, add the 1 at the end.

0+1=1

I heard this was a famous problem because of the division, but this is what I got.

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