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Zina [86]
3 years ago
7

Roni's parents are planning a vacation. They found a cabin to rent for $75 a day with no deposit. They also found a hotel that w

as $45 a day, with a $60 deposit. The costs for the two vacation rentals are shown on the graph below. How many nights can they stay at the hotel or the cabin and pay the same amount of money? A. 3 B. 4 C. 2 D. 1
Mathematics
1 answer:
densk [106]3 years ago
5 0

Answer:

The answer is C

Step-by-step explanation:

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*IN YOUR OWN WORDS* <br>Summarize the constant of proportionality.<br><br>​
Lilit [14]

Answer: <em>Constant of proportionality is the constant value of the ratio between two proportional quantities. Two varying quantities are said to be in a relation of proportionality when, either their ratio or their product yields a constant.</em>

Step-by-step explanation:

To find the constant of proportionality, we use the formula k=y/x. So we have k=20/500 = 0.04.

The equation representing this situation will look like y=kx. Substituting in our value of k that we found, we have the equation y=0.04x.

We can use our equation to find the answer to this problem.

6 0
2 years ago
For each day in New England, the probability that it is mostly cloudy is 0.10 . Cindi is planning to go leaf watching, and her f
kolbaska11 [484]

Answer:

0,37

Step-by-step explanation:

It will be easier if we noun the events.

A= Cindi's friend comes to England.

B= New England is mostly cloudly.

We are searching the probability of just A doesn´t happen or just A happens but not B.

The probability of A doesn´t happen is one minus the probability of A:

=(A^{|} )=1-P(A)=1-0.7=0.3

The events A and B are independent for this reason the probability than both occurs is the product of the probability of each event. It means:

P(A \cap B)= P(A)P(B)=0.1*0.7=0.07

The probability of A doesn´t happen or A and B happen is:

P(A^{|} \cup (A \cap B))= P(A^{|} )+P (A \cap B)-P(A^{|} \cap A\cap B)=0.3+0.07-0=0.37

Conclusively we have to rest the probability of A doesn´t happen and A and B happen, but A happens and doesn´t happen and the same time is impossible. For this reason, we have the same result.

P(A^{|} \cup (A \cap B))-P(A^{|} \cap A\cap B)=0.37-0=0.38

Then the probability either Cindi's friend does not come to New England, or she does come but it is mostly cloudy is 0.37

8 0
3 years ago
I think of number, double it and add 11. I get 25 a) using the statement above, form an equation. Use the letter 'x' as a unknow
Misha Larkins [42]

Answer:

x = 7

Step-by-step explanation:

Let

x = the unknown number

double it :

2x

add 11:

2x + 11

I get 25:

The equation is

2x + 11 = 25

2x = 25 - 12

2x = 14

Divide both sides by 2

x = 14/2

x = 7

7 0
3 years ago
A)0.5<br> B)2.5<br> C)-0.5<br> D)-2.5
7nadin3 [17]

Answer:

B)2.5

Step-by-step explanation:

When x = 3 the actual = 6

Residual = actual - predicted = 6 - 3.5 = 2.5

5 0
3 years ago
Please help, we only have about a few minutes left.
mash [69]
I think she ate 1/2 i think
3 0
3 years ago
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