You have $20 to spend on taxi fare. The ride costs $5 plus $2.50 per kilometer. Write an inequality to determine the distance in kilometers,d, you can ride for $20.

Answers

Answer 1
Answer:

it has to be ummmm.........


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HOME Realty claims that it can sell a detached, residential house faster than any other realty company. With the aim of examining HOME's claim, you sample 20 customers who sold a detached, residential house through HOME and record the selling times (in days) of the houses. Your data are summarized below:Selling Time Frequency0 10 310 20 420 30 630 40 440 50 3Find the proportion of selling times in the sample that are less than 20 days claims that it can sell a detached, residential house faster than any other realty company.

(PLEASE HELP!!!)Which shows the list of numbers in order from least to greatest?

Answers

Answer:

B

Step-by-step explanation:

hope this helps

Answer:

A

Step-by-step explanation:

-2 is the least because the two lines means the number inside will be positive.

this means that -4/5 will be 4/5. Then 1. Then 3.5. Finally, 4.2

Hope this helps you

the line plot shows the ages at which a group of musicians started to play an instrument based on the line plot which statement is not true

Answers

Answer:

Their are 34 musicians

Step-by-step explanation:

If you count the chart you will see that the number of X's equals 34

Answer:

34

Step-by-step explanation:

I did this too, just count the x's

Hope this helps!

A bag contains some number of marbles. It is known that 20 of them are red. When 15 marbles are drawn, without replacement, we get 6 red. Assuming E(X)=6 red, what is the total number of marbles in the bag?

Answers

Answer:

The total number of marbles in the bag is 50.

Step-by-step explanation:

Here, we have n trials, without replacement. So the hypergeometric distribution is used.

The mean of the hypergeometric distribution is:

E(X) = (n*k)/(N)

In which n is the number of items in the sample, k is the number of items in the population that are classified a success and N is the size of the population.

15 marbles are drawn:

This means that n = 15

A bag contains some number of marbles. It is known that 20 of them are red.

This means that k = 20, since a success is drawing a red marble.

Assuming E(X)=6 red, what is the total number of marbles in the bag?

We have to find N when E(X) = 6

So

E(X) = (n*k)/(N)

6 = (15*20)/(N)

6N = 300

N = (300)/(6)

N = 50

The total number of marbles in the bag is 50.

An object is launched at 20 m/s from a height of 65 m. The equation for the height (h) in terms of time (t) is given by h(t) = -4.912 + 20t + 65. What is theobject's maximum height?

Answers

Answer:

The maximum height is the y-value of the vertex.

h(t) = -4.9t² + 20t + 65

     a=-4.9   b=20  c=65

h(2) = -4.9(2)² + 20(2) + 65

     = -19.6 + 40 + 65

     = 85.4

Step-by-step explanation:

What is the answer for this please help

Answers

Answer:

graph attached

Step-by-step explanation:

Which expressions are equivalent to 6 +(-x) + 2x + (-7)+ 2x? Check all that apply.
x + x + 6 - 7 + x
2x+2+x
3- X + 2x - 4 + 2x
X-1
X+1

Answers

Answer:

a and c

Step-by-step explanation:

Answer:

A-     x + x + 6 – 7 + x

C-      3 – x + 2x – 4 + 2x

Step-by-step explanation:

EDG2021