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Alborosie
2 years ago
12

Janie skates at the local skating rink for about 2.4 hours every day. If the skating rink is open 54 days a year, about how many

hours does Janie skate each year?
Mathematics
2 answers:
polet [3.4K]2 years ago
6 0
Well, if she skates about 2.4 hours EVERY day and it's open 54 days you multiply the number of hrs and the number of days.

So, now we have our equation; 2.4×54=?

Now we multiply and "pretend" that the decimal isn't there... which gives us 1,296

Now we remember how many decimal places we had and bring it over to our answer.

Now we have 129.6

So... 54×2.4=129.6
son4ous [18]2 years ago
4 0
About 129.6 hours every single year
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9. Carla has $200 in her bank account.
Firdavs [7]

(a) Linear Equation:   f(x) = 200 - 20x

(b) x-intercept : (10,0)

(c) y-intercept : (0,200)

(d) Domain : {0,1,2,3,4,5,6,7,8,9,10}

    Range : {0,1,2,...,200}

Step-by-step explanation:

Step 1: As we can see in graph, money in Carla is decreasing in multiples of 20 can be referred as 20x.

Every week $20 is getting deducted from the total amount of $200.

Step 2: (a) So we can quote it in equation as,

f(x) = 200 - 20x

where x represents number of weeks

Step 3: (b) x-intercept is where value of y becomes 0.

So, referring graph we can determine x intercept as x = 10. Point (10,0). which also means no money left in account.

Step 4: (c) y-intercept is where value of x becomes 0.

So, referring graph we can determine y intercept as y = 200. Point (0,200). which is starting value of money in account.

Step 5: (d) Domain : {0,1,2,3,4,5,6,7,8,9,10}

                  Range : {0,1,2,...,200}

4 0
3 years ago
Start at 10. Create a pattern that multiplies each number by 10
Yanka [14]

Pattern:

10, 100, 1,000, 10,000, 100,000, 1,000,000, 10,000,000, and so on.

Step-by-step explanation:

First, you must start by using 10 and multiplying it 10 times, 10 x 10 = 100.

Then, with 100 you must multiply it by 10 again, 100 x 10 = 1,000.

Countiue and you will get it.


And good luck! <3

6 0
3 years ago
rent is putting in a sidewalk that is 1/18 yard thick, 9 yards long, and 1 yard wide. how many cubic yards of cement does he nee
madreJ [45]

Answer:

1/18 x 9 x 1 = .5 cubic yards. Why would you ever waste time asking this....

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Use the information to answer the following question.
trasher [3.6K]

Answer:

D is the answer

Step-by-step explanation:

For a: g(x) = 1 when x = 1, for f(x) 1^2 - 2(1) + 2 = 1, a is true.

For b: Both functions do have all real numbers for their domain, b is true

For c: the y-intercept of g(x) is x = 0, for f(x), it is 0^2 - 2(0) + 2 = 2, c is true

For d: g(3) = 7, f(3) = 3^2 - 2(3) + 2  = 5, d is false.

3 0
2 years ago
A system of equations is shown below.
weeeeeb [17]

Answer:

-12

Step-by-step explanation:

Step1: Add 3 to both sides of the equation

2x -3 = 5x +6

    +3         +3 = 9

Step2: subtract 5x from both sides of the equation

2x = 5x +9

-5    -5

Step3: divide both sides of the equation by the same term

-3x(/ -3) = 9(/-3)    

<h3>X=-3</h3>

Step4: multiply -3 with 2

-3x2= -6

Step4: subtract -6 with 3

-6 - 3= -9

<h3>Y=-9</h3>

Step5: add the -9 to -3

-9 + -3 = -12

ANSWER: -12

<h3></h3>

8 0
2 years ago
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