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Sidana [21]
3 years ago
5

Dave's age in 4 years is 18. Write an equation that represents Dave's age in 4 years.

Mathematics
2 answers:
melamori03 [73]3 years ago
6 0
X+4=18. X represents his current age, 4 years are added to his current age, and 18 is his age in 4 years.
julsineya [31]3 years ago
3 0
This equation might be x + 4 =18

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HELP ASAP PLZ 39 POINTS<br> Find x, y, u, v
Ad libitum [116K]

Answer:

x = 9; y = 12; u = 24; v = 32

Step-by-step explanation:

The corresponding sides of similar triangles are in the same ratio to each other.

      3/5 = (3 + x)/20     Multiply each side by 20

20×3/5 = 3 + x

       12 = 3 + x             Subtract 3 from each side

        x = 9

=====

      4/5 = (4 + y)/20     Multiply each side by 20

20×4/5 = 4 + y

       16 = 4 + y              Subtract 4 from each side

        y = 12

=====

      3/5 = (3 + x + u)/60     Multiply each side by 60

60×3/5 = 3 + x + u

       36 = 3 + x + u             Insert the value of x

       36 = 3 + 9 + u

       36 = 12 + u                 Subtract 12 from each side

         u = 24

=====

      4/5 = (4 + y + v)/60     Multiply each side by 60

60×4/5 = 4 + y + v

       48 = 4 + y + v             Insert the value of y

       48 = 4 + 12 + v

       48 = 16 + v                 Subtract 16 from each side

         v = 32

x = 9; y = 12; u = 24; v = 32

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3 years ago
Suppose that the first roll of the two dice yields a sum of 5. we know the probability of two dice yielding a sum of 5 is 4/36 a
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Can someone help me with this task please?
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Help fast this for a test please
weqwewe [10]
The similarity statement would be that all three of them have the same sides
7 0
3 years ago
Find the values of x for which the combined function h(x) = is undefined if f(x) = 5x + 1 and g(x) = x2 - 9.
Rama09 [41]
We need to know the definition of the "combined function" h(x).  I'm going to guess--by looking at answers--that the function is h(x)=\frac{f(x)}{g(x)} making it

h(x)=\frac{5x+1}{x^2-9}

This function is undefined wherever the denominator is equal to 0 (division by zero is undefined).  Factor the denominator.

h(x)=\frac{5x+1}{(x+3)(x-3)}

The two values of x that make the denominator 0 are 3 and -3, otherwise written x=\pm 3.
5 0
3 years ago
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