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STALIN [3.7K]
4 years ago
15

George took his friends to a movie. He bought 3 movie tickets that cost x dollars each, and one jumbo chicken sandwhich. The cos

t 15 dollars less than one movie ticket. which expression represents this situation ?
Mathematics
1 answer:
miv72 [106K]4 years ago
7 0
Ok so it will look like this: chicken sandwich- 15 equals the amount of the ticket
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svetlana [45]

Answer:

k = -2

Step-by-step explanation:

If \frac12^{1-k}=\frac18

Then

\frac1{2^{1-k}}=\frac18=\frac1{2^3}

So

1-k = 3

From this follows k = -2

3 0
4 years ago
How do you get the answer for 10 millimeters increased by 30%
tiny-mole [99]
First you have to find what 30% of ten is, and then add it to the 10. So how do you find 30 % of 10? In math...

"of" means ×
"is" means =

30% of 10 is
30 % × 10 =

change 30% to a decimal by dividing by 100 ( move the decimal to the left 2 places)

.30 × 10 = 3

So 30% of ten is 3. Now since we are increasing by 30%, we have to add it to the original value, 10.

3 + 10 = 13

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8 0
3 years ago
The number of carbon atoms in a fossil is given by the function y= 5100(0.95)^x where x represents the number of years since bei
natita [175]

Answer:

This is a guess!

When looking at the given equation I can not help but think of compound interest. So I am going to convert this into that format.

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Within the context of financial interest:

Looking for:

P

(

1

−

x

)

n

Where P is the principle sum,

x

is the interest and n is the number of interest cycles (annual)

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Given:

y

=

5100

(

0.95

)

x

But

0.95

=

1

−

0.05

so we have

y

=

5100

(

1

−

0.05

)

x

But

.

0.05

=

5

100

So we have

y

=

5100

(

1

−

5

100

)

x

Thus the percentage change each year is

−

5

%

Step-by-step explanation:

8 0
4 years ago
(-5,3),(0,0) what would the equation be 3/5
andrew-mc [135]
3/-5 would be the ANSEWER to your question hope I could help
3 0
3 years ago
0.136363636 as a fraction
Alex787 [66]

Answer:

0.136363636 = 34090909 / 250000000

Step-by-step explanation:

8 0
3 years ago
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