Thomas has constant speeds for both running and walking. When a down-escalator is moving, Thomas can run down it in 15 seconds or walk down it in 30 seconds. One day, when the escalator was broken (and stationary), it took Thomas 20 seconds to run down it. How long, in seconds, would it take Thomas to walk down the broken escalator?

ANSWER QUICK PLS ASAP

Answers

Answer 1

.....................

Answer 2

Answer:

40

Step-by-step explanation:


Related Questions

Every month, $45 is withdrawn from tom's savings account to pay his gym membership. He has enough savings to withdraw no more than $360. For how many months can Tom pay for his gym membership?

Answers

Answer: 8 months.

Step-by-step explanation: Assuming his budget for the gym membership is $360, by dividing 360 (His budget) by the monthly cost of 45, it should leave a quotient of 8. Thus meaning he can pay for 8 months worth of gym membership.

Answer:

8 mounths

Step-by-step explanation:

Since he has $360 saved and he has to pay $45 for each month that means that in order to find out for how many months Tom can go to the jym we just have to divide 260 by 45 and so be get...

360 / 45 = 8

how to get from 4 to 4/3

Answers

You have to divide 4 by 3... Thats gives 4/3
u have to divide 4 by 3 because if you do so then you would get 4/3

PLEASE HELP!


|−1.25| + |2.5|

Answers

Explanation

-1.25+2.5=1.25

Answer:

1.25 is the answer .......

Step-by-step explanation:

hello will u be friend with me

I really need help on this question

Answers

Answer:

[tex]36 + 3x + 48 = 180 \\ 3x + 84 = 180 \\ 3x = 96 \\ x = 32[/tex]

Solve the system of equations

Answers

D= 250
R= 584
If have any problem, tell me^_^

There were 39 apples and 29 oranges at the grocery store. Write the ratio of apples to oranges

Answers

Answer:

39 over 29 or 39 to 29

Step-by-step explanation:

A local charity is selling seats to a baseball game. Seats cost $16 each, and snacks cost an additional $4
each. The charity needs to raise $160 to consider this event a success.
Use the graph to approximate how many snacks the charity must sell if 5 seats are sold.

Answers

Step-by-step explanation:

16$ per seat

*5 seats                16 * 5 = 80

80$ for 5 seats

160$ - $80 = 80$

The remaining money is 80 dollars which need to be spent on snacks:

4$ per snack

80$ / by 4$ = 20 snacks

Work ✔:

20 snacks = 80$

5 seats = 80$                                  Charity Goal = 160$

80$ + 80$ = 160$  

Final answer:

The charity must sell 20 snacks to every five seats to reach the charity goal of 160$

Hope this Helps! :D

david makes a pizza with 8 slices of equal size. He covers 5 of the 8 with pepperoni. what percent of the pizza is covered with pepperoni.

A. 17.5%
B. 40%
C. 58%
D. 62.5%

Answers

Answer:

D

Step-by-step explanation:

5 ÷ 8 = 0.625 = 62.5%

Can someone please helpppp me out I need serious help .

Answers

Answer:

The graph would be:

21      17

12      4

Step-by-step explanation:

Find the inverse of the following function. g(x) = 1/x - 2

plz show work

A.) g^-1(x) = - 2/x-1

B.) g^-1(x) = 2/x-1

C.)g^-1(x) = 1/x+ 2

D.) g^-1(x) = 2/x+1

Answers

Answer: C. g^(-1) (x)= 1/(x+ 2)

Step-by-step explanation:

y=1/x-2

x=1/y-2

1/y-2=x

1/y=x+2

1=(x+2)y

1=xy+2y

xy+2y=1

(x+2)y=1

y=1/(x+2)

answer: g^(-1) (x)= 1/(x+ 2)

This equation shows how the cost of a cab ride depends on the distance in miles. C = d + 2 The variable d represents the number of miles driven, and the variable c represents the cost in dollars. How long is a cab ride that costs $7?​

Answers

I think it is 5 miles since 5+2=$7

A 270 inch board is cut into two pieces one piece is 4 times the length of the other, find the length of the shorter piece

Answers

Answer:

54 inches

Step-by-step explanation:

let 4x = the bigger piece

let x = the smaller one

4x + x = 270

5x = 270

x = 54

Answer:

54 inches

Step-by-step explanation:

x + 4x = 270

5x = 270

x = 54 (shorter piece)

4x = 216 (longer piece)

On Monday, a local hamburger shop sold a combined total of 276 hamburgers and cheeseburgers. The number of cheeseburgers sold was two times the number of hamburgers sold. How many hamburgers were sold on Monday?

Answers

92 hamburgers were sold

Kayla charges $15 for a bracelet, plus $0.80 for each letter bead that is put on the bracelet. Which expression represents the total cost of a bracelet with x letter beads?

Group of answer choices

15.80 + x

15.00x + 0.80

15.00 + 0.80x

15.80x

Answers

Answer:

The answer is 15.00+0.80x

Step-by-step explanation:

I know because I just did this question Lol-

Explain the relationship between the following:
Radius & Diameter
Diameter & Circumference
- Radius & Circumference

Answers

Answer:

Step-by-step explanation:

isn't circumference the whole circle

and radius is the center from the outside

Enter an equation in point-slope form for the line.
Slope is 8 and (-7, -1) is on the line.
The equation of the line in point slope form is:

Answers

Answer:

y + 1 = 8 (x + 7)

Step-by-step explanation:

point slope form is

y - y1 = m (x - x1)

So replace the y1 with the y point, and the x1 with the x point

y - (-1) = m (x - (-7) )

then replace the m with the slope

y - (-1) = 8 (x - (-7) )

now solve

y + 1 = 8 (x + 7)

Samuel is going to invest $1,700 and leave it in an account for 16 years. Assuming the
interest is compounded daily, what interest rate, to the nearest tenth of a percent,
would be required in order for Samuel to end up with $3,100?

Answers

Answer:

4%

Step-by-step explanation:

Given data

principal= $1,700

time= 16 years

final amount=  $3,100

Applying the compound interest formula we have

r = (A/P)^1/t - 1

substitute

r=3100/1700^1/16-1

r=1.82^0.0625-1

r=1.038-1

r=0.038

Hence the rate is 0.038*100

=3.8

=4%

Answer: 3.8%

Step-by-step explanation:

Use the following information to answer the question. Bellei Extravecchio Balsamico Tradizionale is a very expensive brand of balsamic vinegar. A twelve ounce bottle typically costs two-hundred dollars or more. In a blind taste test, a group of food experts tasted three premium balsamic vinegars, with the most expensive one being Bellei Extravecchio Balsamico Tradizionale. When asked to pick the most expensive balsamic vinegar, 92 got it right and 76 got it wrong. Calculate the observed value of the chi-square statistic. Round to the nearest hundredth.

Answers

Answer:

The observed value of the chi-square statistic is 34.71

Step-by-step explanation:

Given the data in the question';

Calculate the observed value of the chi-square statistic

The chi-square statistic will be;

∑[tex]_{i}[/tex][ ( O[tex]_{i}[/tex] - E[tex]_{i}[/tex])² / E[tex]_{i}[/tex] ]

here O[tex]_{i}[/tex] is observed frequency of [tex]_{i}[/tex]th class

E[tex]_{i}[/tex] is expected frequency of [tex]_{i}[/tex]th class

[tex]_{i}[/tex]  = 1, 2 which denote the class of food experts who guess correctly and who didn't guess correctly

so  

∈[tex]_{i}[/tex] = n × probability of not guessing correctly = 168 × 2/3 = 112

∈1 = n × probability of guessing correctly 168 × 1/3  = 56

so

∑[tex]_{i}[/tex][ ( O[tex]_{i}[/tex] - E[tex]_{i}[/tex])² / E[tex]_{i}[/tex] ] = [ ( 92 - 56)² / 56 ] + [ ( 76 - 112)² / 112 ]

= 1296/56 + 1296/112

= 23.14 + 11.57

= 34.71

Therefore, the observed value of the chi-square statistic is 34.71

The Ice Chalet offers dozens of different beginning ice-skating classes. All of the class names are put into a bucket. The 5 P.M., Monday night, ages 8 to 12, beginning ice-skating class was picked. In that class were 64 girls and 16 boys. Suppose that we are interested in the true proportion of girls, ages 8 to 12, in all beginning ice-skating classes at the Ice Chalet. Assume that the children in the selected class are a random sample of the population.

Required:
Construct a 92% Confidence Interval for the true proportion of girls in the ages 8-12 beginning ice-skating classes at the Ice Chalet.

Answers

Answer:

The answer is "(0.73,0.87)".

Step-by-step explanation:

Given:

number of girls[tex]= 64[/tex]

number of boys[tex]= 16[/tex]

Total number of children[tex]= 64+16= 80[/tex]

So,[tex]n=80[/tex]

Calculating the value of the proportion which is given by girls:

[tex]\hat{p}= \frac{\text{number of girls}}{\text{total number of childrens}}[/tex]

  [tex]=\frac{64}{80}\\\\=\frac{8}{10}\\\\= 0.8[/tex]

Therefore the confidence interval is:  

[tex]\to \hat{p}\pm z_{(1-\frac{\alpha }{2})}\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}\\\\\to 0.8 \pm 1.75\sqrt{\frac{0.8(1-0.8)}{80}}\\\\\to 0.8 \pm 1.75 \sqrt{\frac{0.8(0.2)}{80}}\\\\\to 0.8 \pm 1.75 \sqrt{\frac{0.16}{80}}\\\\\to 0.8 \pm 1.75 \sqrt{0.002}\\\\\to 0.8 \pm 1.75 (0.04)\\\\\to 0.8 \pm 0.07\\\\\to (0.73,0.87)[/tex]

[tex]\therefore \\\\\text{The lower confidence limit} = 0.73\\\\\text{The upper confidence limit} = 0.87\\[/tex]

Tell whether each function is linear or non-linear.

Function A line1 Function B

x 0 1 2 3

y 0 1 8 27

y = –x + 5


Function A is non-linear and Function B is non-linear.


Function A is linear and Function B is non-linear.


Function A is linear and Function B is linear.


Function A is non-linear and Function B is linear.

Answers

Answer:

Function A is non-linear and Function B is linear.

Step-by-step explanation:

Linear function:

Has the following format:

y = mx + b

In which m is the slope and b is the y-intercept.

In a linear function, when x changes by 1, y will always changes by the same amount.

Function A:

When x changes by 1, y can change by various amounts. So function A is non-linear.

Function B:

y = -x + 5

In the format of a linear function, so linear

Quincy is building a tower out of blocks that are each 5/6 of an inch in height. He decides
to stack only nine so that his tower does not topple over. How tall is the tower with the nine
blocks

Answers

Answer:

90 inches tall

Step-by-step explanation:

5/6 of 12 is 10 so the blocks are 10 inches tall each 10x9 is 90

3 3/10 divided by 1 4/7. divided in its lowest terms

Answers

Answer:

2.1

Step-by-step explanation:

Find the area of the circle. Round your answer to the nearest tenth. The circle has a radius of 9

Answers

Answer:

I is at least ten because of nine it rounds to ten

9.
If a 1000-cm string is cut into the ratio of 1: N:2, what is N?​

Answers

Answer:

The N is 1

Step-by-step explanation:

The computation of N is given below:

Given that there is a 1,000 cm string

That cut into the ratio of 1:N:2

So if we considered the N be 1

1,000 = 1:1:2

So it would be 250 + 250 + 500 = 1000

Hence, the N be 1

So the same is relevant

Using the ratio principle, the value of N in the expression would be 2.

Given that, the length of the string = 1000 cm :

Ratio = 1 : N : 2

Since none of the value of the ratios are given, then N could be a value such as 2 ;

If N = 2 ;

Ratio total = (1 + 2 + 2) = 5

(1000 / 5) × 1 = 200 cm

(1000 / 5) × 2 = 400 cm

(1000 / 5) × 2 = 400 cm

Hence, the value of N in the expression is 2.

Learn more : https://brainly.com/question/24423994

Don Trastmi is a respected investment consultant, but with a bit of a pessimistic attitude. He always projects correctly when the stock market goes down, but he is right only 6 out of 10 times when the market goes up. Don projects that next week the market will go up. What is the probability that the market will indeed go up

Answers

Answer:

The answer is "[tex]\bold{\frac{6}{10}}[/tex]"

Step-by-step explanation:

[tex]\to p(\frac{\text{Market is falling}}{\text{The expected demand is fall Don}}) =1\\\\\to p(\frac{\text{Market is falling}}{\text{The expected demand is rising Don}}) =0.6[/tex]

That's why the answer is [tex]\to \frac{6}{10}[/tex]

5. Mai attempted 40 free throws and was successful 25% of them. How many free throws did
she make?

Answers

Answer:

10 were successful

Step-by-step explanation:

40x25%=10

Answer:

10

Step-by-step explanation:

40*.25 = 10

What is 0.000000000525 in scientific notation?

A.
B.
C.
D.

Answers

5.25 * 10^-10

Hope it helps!!

Answer: Hello there!

It is 5.25 x .10^-10

Hope This Helps You!

Good Luck :)

Step-by-step explanation:

How do I solve this?”USING SIMPLIFYING RADICALS WITH VARIABLES”

Answers

Answer:

[tex]\sqrt{72a^8b^5} = 6a^4b^2 \sqrt{2b}[/tex]

Step-by-step explanation:

Given

[tex]\sqrt{72a^8b^5[/tex]

Required

Simplify

Express 72 as 36 * 2

[tex]\sqrt{72a^8b^5} = \sqrt{36 * 2*a^8b^5}[/tex]

Express [tex]b^5[/tex] as [tex]b^4*b[/tex]

[tex]\sqrt{72a^8b^5} = \sqrt{36 * 2*a^8*b^4*b}[/tex]

Reorder

[tex]\sqrt{72a^8b^5} = \sqrt{36 *a^8*b^4* 2*b}[/tex]

Split:

[tex]\sqrt{72a^8b^5} = \sqrt{36} *\sqrt{a^8} *\sqrt{b^4} * \sqrt{2*b}[/tex]

Simplify each term

[tex]\sqrt{72a^8b^5} = 6 * a^{\frac{8}{2}} * b^{\frac{4}{2}} * \sqrt{2*b}[/tex]

[tex]\sqrt{72a^8b^5} = 6 * a^4 * b^2 * \sqrt{2*b}[/tex]

[tex]\sqrt{72a^8b^5} = 6a^4b^2 * \sqrt{2*b}[/tex]

[tex]\sqrt{72a^8b^5} = 6a^4b^2 \sqrt{2b}[/tex]

Hannah spends $4.50 each day to buy lunch at her school. After school each day, she buys the same snack. Hannah spends $28.75 for lunch and snacks each week (5 school days). What is the cost of each snack? Write and solve an equation to model the situation. SHOW EVERY STEP.

Answers

Answer: 1.25

Step-by-step explanation: 28.75 ÷ (5 school days) so for one day the cost is $5.75 then subtract $4.50 and you get 1.25

i have a feeling this is it

What is the area of the composite figure?

Answers

Hello! :)

[tex]\large\boxed{A = 32.5cm^{2}}[/tex]

We can use the following area to solve for the area of the trapezoid pictured:

[tex]A = \frac{1}{2}(b_{1} + b_{2})h[/tex]

Where:

h = height

b1 = bottom base

b2 = top base

Plug in the given values:

[tex]A = \frac{1}{2}(9 + 4)(5)[/tex]

Simplify:

[tex]A = \frac{1}{2}(65)\\\\A = 32.5 cm^{2}[/tex]

Other Questions
Given that nitrogen formsthree bonds with hydrogen tomake NH3, how many hydrogenatoms do you think will bondwith an atom of phosphorous? Which food and exercise habits most likely increase one's chances of developing chronic diseases, like type-2 diabetes?A. eating energy dense foods often and playing soccer everydayB. sometimes indulging in unhealthy foods and going to the gym most daysC. eating nutritious food most of the time and often doing yard workD. eating foods high in saturated fats most of the time and not exercising PLEASE PLEASE HELP! :(Which line is most likely to have a slope of 10? use the distributive property to rewrite each algebraic expression 3(x+7) 5(2x+7) Select the indicated real n th root(s) of a. n=5 a=243 Taj saved $680 in 8 months. How much did his savings average each month? The Sahara Desert is _____.1 smaller than the Kalahari Desert2 smaller than the Namib Desert3 located in Central and Southern Africa4 located in North Africa PLEASE HELP ASAP! WILL GIVE BRAINLIEST!!!! -348nI have to solve this using perfect squares, is anyone familiar with those? Find the Area and Perimeter Mr. Nelson went to Taco Town to get lunch for the eighth-grade teachers one day when they were having a grade-level meeting. He bought eight tacos and five burritos, and the total cost before tax was $13.27 Two independent companies, Denver and Bristol, each own a warehouse, and they agree to an exchange in which no cash changes hands. The following information for the two warehouses is available: Denver BristolCost $80,000 $31,500Accumulated depreciation 60,000 25,000Fair value 17,000 17,000Required:1. Assuming the exchange has commercial substance, prepare journal entries for Denver and Bristol to record the exchange.2. Assuming the exchange does not have commercial substance, prepare journal entries for Denver and Bristol to record the exchange. how do you note the scientific details from an information text it would mean a lot. Need help on question hurry How to handle online class.Different strategies in online class. Hi can you help me with this problem i dont understand itIll do anything if your correct The diagram shows Mendels test for flower color he crossed a plant with white flowers with one that had purple flowers then he let the first-generation offspring pollinate to produce the seconde-generation off spring What is on a transplanted organ that causes the transplant recipient's body to reject it? What is FDRs main idea in the speech?