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4vir4ik [10]
3 years ago
5

Peter and Pam are both avid swimmers. Last week Pete swam twice as many hours s Pam. Together they swam a total of 18 hours. How

many hours did each swim?
Mathematics
2 answers:
hoa [83]3 years ago
4 0

Answer:

Peter swam 12 hours, Pam swam 6

Step-by-step explanation:

Pam = x

Peter = y

y = 2x (this is because Peter swam twice as much)

y + x = 18 (this is because they both swam a total of 18 hours)

2x + x = 18 (substitute for y)

3x = 18

x = 6 (pam)

Now, I just need to substitute x = 6 into original equation.

y = 2(6)

y = 12 (peter)

lorasvet [3.4K]3 years ago
3 0

Answer:

Peter- 12 hours

Pam- 6 hours

Step-by-step explanation:

You can set it up an an equation.

P = Peter

18= P + (P/2)

Solve.

36=2P+p

36=3P

P=12

Peter swam 12 hours.

Then 18-12= 6, Pam's number of hours.

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The value of a=9,b=3 and c=1

Step-by-step explanation:

The graph shown is for function f(x)

The given function is f(x)=(\frac{1}{3}) ^{x}

Table says,

X      Y

-2      a

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To find value of a:

From table, for output value a, input value, x=(-2)

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Therefore,

f(x)=(\frac{1}{3}) ^{x}

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a=(\frac{1}{3^{(-2)}})

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we can write f(-1)=b

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f(x)=(\frac{1}{3}) ^{x}

f(-1)=(\frac{1}{3}) ^{(-1)}

b=(\frac{1}{3^{(-1)}})

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To find value of c:

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we can write f(0)=c

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f(x)=(\frac{1}{3}) ^{x}

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So, that’s cool.
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At the museum, the O'Rourke family bought 3 adult tickets and 2 children tickets for $23.50. The Patel family bought 2 adult tic
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\boxed{\text{\$581.25; \$81.25}}

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