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frosja888 [35]
3 years ago
10

Luke earns $50 for doing his chores each month. He washes cars in his neighborhood for $15 each. Last month he earned a total of

$110. How many cars did he wash?
1. Define your variable, what is unknown?
2. Write an Equation that represents the situation.
3. Solve for the number of cars.
4. Why wouldn’t it make sense to start the table a graph to represent this at (-1,-1)
Mathematics
1 answer:
Furkat [3]3 years ago
8 0

Answer:

He washed 4 cars.

Step-by-step explanation:

1. The variable that was unknown x amount of cars washed.

2.The equation I used was 110-50=15x

3. To solve this you subtract the 50$ from 110$ you get sixty dollars you do that to take out what he earned for his allowance. Then your equation is 60=15x so you divide each side by 15 and when you do that x=4

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Cellular phone service that charges per minute will charge $35 for 220 minutes. How much would 753 minutes cost?
Sonbull [250]

Answer:

$119.795  (aprox)

Step-by-step explanation:

Proportions:

$35  ⇔ 220 minutes

$C  ⇔  753 minutes

C = 753*35/220

C = $119.795    aprox.

8 0
3 years ago
Find an equation for the line below
s344n2d4d5 [400]

Answer:

y = 1/3 x + 14/3

Step-by-step explanation:

We can identify the two points shown easily.

They are (-2, 4) and (4, 6).

First, we find the line of the slope of the line that contains those two points.

slope = m = (y2 - y1)/(x2 - x1) = (6 - 4)/[4 - (-2)] = 2/6 = 1/3

Now we use one point and the slope to find the y-intercept.

y = mx + b

Let's use point (4, 6) and the slope, 1/3.

6 = (1/3)(4) + b

18/3 = 4/3 + b

b = 18/3 - 4/3

b = 14/3

The equation is

y = mx + b

y = 1/3 x + 14/3

8 0
3 years ago
The given diagram can be used to prove the Pythagorean theorem. Which expression represents the total area of the four triangles
julsineya [31]
It’s b that’s a better answer
7 0
3 years ago
Consider the following If statement, which is syntactically correct but uses poor style and indentation: if (x >= y) if (y &g
Natali [406]

Answer:

27

Step-by-step explanation:

       int x = 9;

       int y = 3;

       if (x >= y)

       if (y > 0)

       x = x * y;

       else if (y < 4)

       x = x - y;

First, the first if statement check for the value of x>=y which is true. The another if-statement check if y>0, which is true and it execute the statement x = x * y that is x = 9 * 3 and x = 27.

The else-if block is not executed because the if-statement attached to it has been executed already.

3 0
3 years ago
2000000 in standard form​
algol13

Answer:

2 \times  {10}^{6}

3 0
3 years ago
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