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hjlf
3 years ago
10

Which equation models the statement shown? y varies directly with x and =25 y = 25 when =5 x = 5 .

Mathematics
1 answer:
jenyasd209 [6]3 years ago
4 0

Answer:

The value of y is 125 when x=25.

Step-by-step explanation:

It is given that y varies directly as x. It means y is proportional to x.

Where k is constant of proportionality.

It is given that y=25 when x=5. Put x=5 and y=25 in the above equation to find the value of k.

Divide both sides by 5.

The value of k is 5.

The relation between x and y is defined by the equation

Put x=25 in the above equation.

Therefore the value of y is 125 when x=25.

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Answer:

10 gallons

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lets write it mathematically

x + 9 = 19

subtracting 9 from both side

x + 9 - 9 = 19 - 9

=> x = 10

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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Together, Ashley and Gabby watched a total of 14 hours of television over the weekend. Ashley watched 6 times as many hours as G
Rainbow [258]

Answer:

The number of times over the Weekend that:

Ashley watched TV = x = 12 hours

Gabby watched TV = y = 6 hours

Step-by-step explanation:

Let us represent:

The number of times

Ashley watched TV = x

Gabby watched TV = y

Together, Ashley and Gabby watched a total of 14 hours of television over the weekend.

= x + y = 14..... Equation 1

x = 14 - y

Ashley watched 6 times as many hours as Gabby.

x = 6y

Using substitution method

We substitute 14 - y for x

14 - y = 6y

14 = 6y + y

14 = 7y

y = 14/7

y = 2 hours

Solving for x

x = 14 - y

x = 14 - 2

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Therefore:

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6 0
3 years ago
Does anyone seriously know how to do these
mr Goodwill [35]
Thats simple!
h(x)= \frac{x^{2}+3x }{4x+27}
find h(-8)
All we need to do is PLUG IN THE -8
h(-8)= \frac{(-8)^{2}+3(-8) }{4(-8)+27}
        =\frac{64-24}{-32+27} (negative²=positive,                                                                                negative×positive=negative)
        =\frac{40}{-5}
h(-8)=-8
4 0
4 years ago
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