Sarah walks uphill at an average of 2 miles per hour, and downhill at an average of 4 miles per hour. She goes for a 6 mile hike up a hill, and then returns downhill by the same route. What is Sarah's average speed for the whole journey?

Answers

Answer 1

Answer:

48

Step-by-step explanation:

Answer 2

Answer:

Average of 3mph

Step-by-step explanation:

If Sarah goes uphill at 2mph and downhill at 4mph.

Then to find the average you can:

Add 2 plus 4

which equals 6

Then divide the sum of 6 by the number of values given, there are two values (2 and 4)

6 divided by 2 equals 3

So the average is 3mph


Related Questions

Evaluate the following expression when x = 1.5.
Show your work!
7.5 - X

Answers

Answer:

6

Step-by-step explanation:

7.5-1.5

=6

that is easy

Answer is 6—————————-/——/———————

Which explains how the table can be used to predict the cost of any number of students attending the game?
A.The table is a partial representation of a larger data set. It can be used to generate a graph that is a complete representation of the data set.
B. The table is a partial representation of a larger data set. It can be used to generate an equation that is a complete representation of the data set.
C. The table is a complete representation of the data set. To determine the cost of any number of students, find the number of students in the x-column.
D.The table is a complete representation of the data set. To determine the cost of any number of students, find the number of students in the y-column.​

Answers

Answer:

The answer is B

Step-by-step explanation:

The table is a partial representation of a larger data set. It can be used to generate an equation that is a complete representation of the data set.

Between 02 30 and 05 15, the same day ,the volume of water in a reservoir increased from 1500 L to 14 700 L. What was the average rate of increased in volume of water, giving your answer in L/h?

Answers

Answer:

4,800

Step-by-step explanation:

(14,700- 1,500) / 2 h 45 m

= 13,200 / 2.75

= 4,800 L/h

Time in minutes between 2 30 and 5 15 = 165 minutes= 2.75 hrs

raise in water level = 14700-1500= 13200

the average rate of increased in volume of water, giving your answer in L/h = 13200/2.75 = 4800 L/h

Evaluate 25^3 -75^3 + 50^3

Answers

Answer:

Step-by-step explanation:

Find the volume of the cylinder in terms of pie and to the nearest tenth 4 in 1in

Answers

Answer:

Actual answer:

4^4 = 16

16 x 3.14 = 50.24

50.24 x 1(height) = 50.24

Rounded to the nearest Tenth:

50.24 rounded = 50.2

Helpp me plssssss????

Answers

Answer:

C

Step-by-step explanation:

The radius is 4 making the diameter 16 you need the other side since in half so that leaves you with answer C...16[tex]\pi yd^2[/tex]

is 4+3=1+6 correct?.................................................................................................

Answers

Answer:

Correct

Step-by-step explanation:

4 + 3 = 7

1 + 6 = 7

Therefore the statement is true :)

Answer:

4+3=1+6 is correct

Step-by-step explanation:

4+3=7

1+6=7

Very complicated math lol

Ahmad made 4 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 4 necklaces was $19.20. If the beads cost a total of , $12.80,how much did each pendant cost?
give brainliest

Answers

Answer:16 cents

Step-by-step explanation:

HELPPPP Q24 &27......

Answers

Answer:

24. f'(2)=4

27. f'(2)=√2/4

Step-by-step explanation:

Sorry if I'm wrong

Which expression represents the complete factorization of x^3 + 4x^2 - 4x - 16?
A. (x^2 - 4) (x + 4)

B. (x + 2) (x - 2) (x + 4)

C. (x^2 - 4) (x + 2)

D. 4(x - 4) (x - 5)

Answers

The answer is B, (x+2)(x-2)(x+4)

Which choice is equivalent to the expression below?
√20 + √45

Answers

Answer :

→ √20 + √45

→ 2√5 + 3√5

Taking √5 as common.

→ (2 + 3)√5

55

Therefore, option A is correct.

a=1.34,b=0.273,c=3.3548
a×b

Answers

Answer:

0.36582

Step-by-step explanation:

(a×b)

= (1.34×0.273)

= 0.36582

PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Answers

Answer:

equilateral acute

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

C. Equilateral acute

Step-by-step explanation:

The triangle is less than 90 degrees so it's an acute

What is the missing number in the pattern? 9, _____, 35, 48, 61

Answers

Answer:

4 there all adding by 13 so do 13-9 to get 4

Answer: 22

Step-by-step explanation: The answer is 22 because all you have to do it keep adding 13 to the number like.

9 + 13 = 22

22 + 13 = 35

35 + 13 = 48

48 + 13 = 61

etc

A sum is invested in a building society at 4% interest per annum and after 3 years
the value of the investment is £562.43. How much was originally invested?

Answers

Answer:

Original value of investment = £500 (Approx.)

Step-by-step explanation:

Given:

Rate per year = 4%

Number of year = 3 years

Value of investment after 3 year = £562.43

Find:

Original value of investment

Computation:

A = P[1+r]ⁿ

562.43 = P[1+4%]³

562.43 = P[1+0.04]³

562.43 = P[1.04]³

562.43 = P[1.1248]

Original value of investment = 562.43 / 1.1248

Original value of investment = 500.026

Original value of investment = £500 (Approx.)

Each day for two weeks, Howard recorded values for the following two
variables.
2
• s, the number of students ahead of him in the lunch line when he got in
line
• m, the number of minutes elapsed between when he got in line and when
he sat down to eat
He then plotted his data on a scatter plot, with the horizontal axis representing
s and the vertical axis representing m, and drew a line of best fit. The equation
of the line was m = S + 1.
According to the equation of the line, if there are 52 students ahead of Howard
when he gets in the lunch line, how many minutes should he expect it to take
before he sits down to eat?

Answers

Given statement solution is :-  If there are 52 students ahead of Howard when he gets in the lunch line, he should expect it to take approximately 53 minutes before he sits down to eat.

According to the equation of the line given as "m = S + 1," where m represents the number of minutes elapsed and s represents the number of students ahead of Howard in the lunch line, we can substitute the value of s as 52 to find the expected number of minutes.

m = S + 1

m = 52 + 1

m = 53

Therefore, if there are 52 students ahead of Howard when he gets in the lunch line, he should expect it to take approximately 53 minutes before he sits down to eat.

For such more questions on Line Wait Time

https://brainly.com/question/31658921

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PLEASE HELP ITS DUE SOON!!!!

Answers

Answer:

x=4

Step-by-step explanation:

4x+7=23

4x=23-7

4x=16

x=16÷4

x=4

Answer:

4

Step-by-step explanation:

4 x 4 + 7 = 23

A 32 oz water bottle costs $10.70.

___ oz per water bottle

___ dollars per ounce

round answer to nearest hundredth

Answers

Answer:

32 oz per water bottle

$0.33 dollars per ounce

Step-by-step explanation:

We are already given 32 oz as the amount per water bottle, so all we need to do is calculate the dollars per ounce. We can do this by dividing the cost of the water bottle by the number of ounces.

$10.70 ÷ 32= 0.334375 ------> 0.33

Rounding to the hundredths place we get $0.33.

Help!! Please NO links or I will report you also NO fake answers!! Thanks. The image is above. ¡​

Answers

Answer:

second choice, 3 in³

Step-by-step explanation:

24×1/8=3 in³

What is the scale length for an object that is 26”, if the scale is 1/8?

Answers

Answer:

3.25"

Step-by-step explanation:

If the scale is 1/8, then the model or drawing has lengths which are 1/8 of the objects lengths.

Find 1/8 of 26.

[tex]26 \times \frac{1}{8} = \frac{26}{8}= 3.25[/tex]

Can someone help me please?

Answers

Answer:

last option is correct:  bc^5(5abc^6 + 2)

Step-by-step explanation:

What are the solutions to the following quadratic equation? *
1 point
Captionless Image
x = –8 and x = –7
x = 7 and x = 8
x = –7 and x = –1

Answers

Answer:

x=123456789101112131415

Step-by-step explanation:

Try using guatmath is a really good app

You have an assignment due in 2 hours, 30 minutes (150 minutes total). The assignment has 25 problems for you to complete. If you have not started yet and spend the same amount of time on each problem, how much time can you spend on each problem and complete all 25 problems in time?

Create and solve a linear inequality to determine how much time you can spend on each problem.

What does your solution from part (a) represent/mean?

PLEASE HELP !!!!!!!!!!!!!!!!!!!

Answers

Answer:

[tex]t \le 6[/tex] min

Step-by-step explanation:

The time to do 25 problems should take less than (or equal to) the 150 minutes available.

[tex]25t \le 150\\t \le 6[/tex]

Help if you know the answer plz and thank you!!

Answers

Answer:

-12 w^3

Step-by-step explanation:

-9w^3  - 3 w^3

Factor out the common term

w^3( -9-3)

w^3 (-12)

There are 5 billiard balls in a velvet bag. Three
of the balls are striped and the other 2 are
solid. What's the probability of pulling out a
striped ball? Write your answer as a fraction.

Answers

Answer:

3/5

Step-by-step explanation:

Will give brainliest to correct answer

Answers

Answer:

Step-by-step explanation:

here you go.

2. One important factor in inventory control is the variance of the daily demand for a product. Management believes that demand is normally distributed with the variance equal to 250. In an experiment to test this belief about , the daily demand was recorded for 25 days. The data has been summarized as follows: xbar = 50.6 and s2 = 500 Do the data provide sufficient evidence to show that management's belief about the variance is untrue? (Use alpa=0.01 ).

Answers

Answer:

we reject H0 and conclude that management's belief about variance is untrue.

Step-by-step explanation:

H0 : σ² = 250

H1 : σ² ≠ 250

Sample size, n = 25

xbar = 50.6 ; s² = 500

α = 0.01 ;

The test statistic :

χ² = [(n - 1)s²] ÷ σ²

χ² = [(25 - 1)* 500] ÷ 250

χ² = (24 * 500) / 250

χ² = 12000 / 250

χ² = 48

The critical value:

df = n-1 ; 25 - 1 = 24

χ²(0.01/2 ; 24) = 45.559

Decison :

Reject H0 : if |χ² statistic| > critical value

Since 48 > 45.559

Hemce, we reject H0 and conclude that management's belief about variance is untrue.

Please I need help?!?!?!?!?!

Answers

Answer: y=7

Step-by-step explanation:

Using the formula: (y - y1) = 0 (x - x1)

Substitute x1 with -2, and y1 with 7 and set the slope as 0.

Y-7=0(x-(-2))

Y - 7 = 0 (x + 2)

Anything times 0 = 0, so cancel out the -2.

Y-7=0

Add the 7 to the 0.

Y = 7

i need help please hurry it needs to get turned in asappppp

Answers

Answer:

11.25

Step-by-step explanation:

Ms. Clark earned $32,550 in her third year as a banker and $34,150 in her seventh year. How much did she make in her tenth year? Assume that her yearly salaries form an arithmetic sequence.

Answers

Answer:              

$35,350 with an increase of $400 a year

 

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