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mafiozo [28]
3 years ago
10

Oscar billed his neighbor a total of $125 for the landscaping work he did. The total cost of the materials was $20 and he charge

d $14 per hour for his service. How many hours did he work
Mathematics
1 answer:
Law Incorporation [45]3 years ago
8 0

Answer:

He worked 7.5 hours

Step-by-step explanation:

Let's set up an equation!

125 = 14x + 20.

We are trying to find x!

Let's subtract 20 on both (maintain equality) sides

105 = 14x

Now let's divide both(maintain equality) sides by 14 to get!

x = 7.5

Let's check!

125 = 14 * 7.5 + 20

125 = 105 + 20

125 = 125 YES

So, x = 7.5

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Reptile [31]
The correct answer is X = -5
5 0
3 years ago
A recent survey asked UF students if they had a job or not, and if they were underclassmen (Freshmen and Sophomores) or uppercla
vlada-n [284]
Following the table and knowing that the total number of students interviewed were 158 ( we can see this by looking adding either the total number of upperclassment or adding the total number of people with jobs or no jobs, this value is at the bottom right of the table in the figure attached).
Recall that:
P(A\cup B)=P(A)+P(B)-P(A\cap B)
In the figure provided each of these terms is highlighted in a different color. To convert these values to their matching probabilities we have to divide each by the total number of students, this is due to the fact that the probability is the number of favorable cases (in this case a group matching the qualities we seek) divided by the total amount of cases ( that is the total number of people interviewed). In the figure the answer is provided. For the intersection of the two events we're looking for people that is both an undercalssman and also has a job.

3 0
4 years ago
If you need to know the other options I'll tell you just ask :)​
vazorg [7]

Answer:

The slope is -50. The slope means that the amount of money in the account is decreasing at a rate of  $50 every week.

Step-by-step explanation:

Given coordinates are (4,2400)\ and\ (12,2000)

We need to find the slope of the graph, and explain what does slope means for this graph.

The formula for computing slope (m) is  

m=\frac{y_2-y_1}{x_2-x_1}

Where (x_1.y_1) and (x_2,y_2) are the point on the line.

Let us plug points (4,2400)\ and\ (12,2000) in the equation

m=\frac{2000-2400}{12-4}\\ \\m=\frac{-400}{8}\\\\m=-50

Here, the negative sign of slope (m) represents that the value of the function (budget) is decreasing, with an increase in time (week).

The slope is -50. The slope means that the amount of money in the account is decreasing at a rate of  $50 every week.

6 0
4 years ago
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sergiy2304 [10]
Step 4 is wrong. the answer is 1/8, she changed sign on 2^(-3) to 2^(3) without moving it to numerator
8 0
3 years ago
There are two spinners containing only red and orange slices. Spinner A has 7 red slices and 13 orange slices. All the slices ar
yan [13]
Event 4 (impossible), Event 3 (probability is 7/20), Event 1 (probability is 6/12 which is greater than 7/20), and Event 2 (certain to happen)
8 0
4 years ago
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