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inysia [295]
2 years ago
5

Now that you have converted a terminating decimal number into a fraction, try converting a repeating decimal number into a fract

ion. Repeating decimal numbers are more difficult to convert into fractions. The first step is to assign the given decimal number to be equal to a variable, . For the decimal number , that means . If , what does 10x equal? giving 30 points
Mathematics
1 answer:
Ulleksa [173]2 years ago
7 0

Answer:

11.78

Step-by-step explanation:

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12+3y+y=?<br> What is the answer?
puteri [66]

Answer:

12+4y

Step-by-step explanation:

12+3y+y=12+4y

3 0
3 years ago
Read 2 more answers
Zoe is 16 years old. Her brother Luke is 3 years more than half her age. Write a numerical expression for Luke’s age.
Alenkasestr [34]

; Simplified =

Let "Zoe" = z

Let "Luke" = x

x = 16/2 + 3 is your equation

You're expression is

~

3 0
3 years ago
Tutorial Exercise A boat leaves a dock at 2:00 PM and travels due south at a speed of 20 km/h. Another boat has been heading due
ANTONII [103]

Answer:

Both the boats will closet together at 2:21:36 pm.

Step-by-step explanation:

Given that - At 2 pm boat 1 leaves dock and heads south and boat 2 heads east towards the dock. Assume the dock is at origin (0,0).

Speed of boat 1 is 20 km/h so the position of boat 1 at any time (0,-20t),

        Formula :   d=v*t

at 2 pm boat 2 was 15 km due west of the dock because it took the boat 1 hour to reach there at 15 km/h, so the position of boat 2 at that time was (-15,0)

the position of boat 2 is changing towards east, so the position of boat 2 at any time (-15+15t,0)

      Formula : D=\sqrt{(x2-x1)^2+(y2-y1)^2}

⇒                     D = \sqrt{20^2t^2+15(t-1)^2}

Now let           F(t) = D^2(t)

                ∵    F'(t) = 800t + 450(t-1) =  1250t -450\\F'(t) =0

⇒                     t= 450/1250

⇒                     t= .36 hours

⇒                       = 21 min 36 sec

Since F"(t)=0,

∴ This time gives us a minimum.

Thus, The two boats will closet together at 2:21:36 pm.

3 0
3 years ago
A painter earns $15 per hour.What is the minimum number of hours he must work to earn at least $200?
babunello [35]
12 hours in order to make 200 dollars
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Is -7x=2y-6 a direct proportion?
olga_2 [115]
Yes, it is.and I have to keep typing because I need a character at least 20
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