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kykrilka [37]
3 years ago
5

Soos is spending money at the average rate of $5 per day. After 9 days, he has $25 left.

Mathematics
2 answers:
balandron [24]3 years ago
7 0

Answer:  She had $70 at the beginning.

Step-by-step explanation:

Lets represent this situation as an equation where we will  use y to represent the amount of money left and x for the number of days.  

Using the formula  y = mx + b  , we can say b  will be the amount in 0 days because its the y intercept and the y intercept is when x is 0.  

m will be the rate of change and the rate of change will be -5 per day because he is spending.

In 9 days, he had $25 left  and we can also represent that by the point (9,25)  

Now input the values for x and y into the formula with the slope and solve for b.

y = mx + b

25 = -5(9) + b

25 =  - 45 + b    

+45    +45

 b = 70  

This means she started with $70.

Nana76 [90]3 years ago
4 0

to get the answer you first need to do is $5 × 9 and that will get you $45. then you add the $25 to the $45

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The average of three different positive integers is 8. What is the largest integer that could be one of them.
Trava [24]
Supposing that the integers are x, y and z, and that their average is 8, then

x+y+z
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    3

Let's experiment.    Making up a table, we get:

x   y   z   sum (sum MUST be 24)
5  9  10    24
4  9   11    24
3  10  11   24
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At central high school there are 398 sophomores who do not own a car and 29 who do there are 64 juniors who own a car and 339 wh
sertanlavr [38]

The proportion of sophomores that do not own a car is equal to 0.93.

<h3>What is ratio?</h3>

Ratio is a mathematical expression that is used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.

The proportion of sophomores that do not own a car is given by:

  • Number of sophomores that do not own a car = 398.
  • Total number of sophomores = 427

Therefore, proportion = 398/427 = 0.93.

The proportion of all students who are seniors who own cars is given by:

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Therefore, proportion = 123/1192 = 0.10.

The proportion of non-car owners who are juniors is given by:

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  • Total number of students that do not own a car = 976.

Therefore, proportion = 339/976 = 0.35.

Read more on ratio here: brainly.com/question/13513438

#SPJ1

<u>Complete Question:</u>

At Central High School, there are 398 sophomores who do not own a car and 29 who do. There are 64 juniors who own a car and 339 who do not. There are 123 seniors who own a car, compared to 239 who do not. The above is a two-way table depicting this situation. Complete the following statements below by finding the ratio, then converting to a decimal. Round to the nearest hundredth.

The proportion of sophomores that do not own a car is?

The proportion of all students who are seniors who own cars is?

The proportion of non-car owners who are juniors is?

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OverLord2011 [107]
More likely because you are doing a job that you enjoy doing.
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