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Katena32 [7]
3 years ago
13

Marina and her mother each have a salad and a drink for lunch at a restaurant. A salad costs $4.75 and a drink costs $1.65. Mari

a's mother leaves a 15% tip. What is the amount of the tip?
Mathematics
2 answers:
Taya2010 [7]3 years ago
6 0
96 cents, hope i helped!
Mariulka [41]3 years ago
3 0
You can put this into an equation to make it easier.

$4.75 + $1.65 = $6.4

If Maria's mother left 15% tip, then we change the percentage which would be equal to 0.15

So, we can use $6.4 * 0.15 = t
t = being the amount she left for tip.

So, you multiply $6.4 times 0.15 which would give you $0.96 or 96 cents.
So, she left 96 cents for tip.

I hope this helps.
YOU'RE WELCOME :D
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Step-by-step explanation:

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Please help me in this questions....​
Ivahew [28]

Part (i)

I'm going to use the notation T(n) instead of T_n

To find the first term, we plug in n = 1

T(n) = 2 - 3n

T(1) = 2 - 3(1)

T(1) = -1

The first term is -1

Repeat for n = 2 to find the second term

T(n) = 2 - 3n

T(2) = 2 - 3(2)

T(2) = -4

The second term is -4

<h3>Answers: -1, -4</h3>

==============================================

Part (ii)

Plug in T(n) = -61 and solve for n

T(n) = 2 - 3n

-61 = 2 - 3n

-61-2 = -3n

-63 = -3n

-3n = -63

n = -63/(-3)

n = 21

Note that plugging in n = 21 leads to T(21) = -61, similar to how we computed the items back in part (i).

<h3>Answer:  21st term</h3>

===============================================

Part (iii)

We're given that T(n) = 2 - 3n

Let's compute T(2n). We do so by replacing every copy of n with 2n like so

T(n) = 2 - 3n

T(2n) = 2 - 3(2n)

T(2n) = 2 - 6n

Now subtract T(2n) from T(n)

T(n) - T(2n) = (2-3n) - (2-6n)

T(n) - T(2n) = 2-3n - 2+6n

T(n) - T(2n) = 3n

Then set this equal to 24 and solve for n

T(n) - T(2n) = 24

3n = 24

n = 24/3

n = 8

This means 2n = 2*8 = 16. So subtracting T(8) - T(16) will get us 24.

<h3>Answer: 8</h3>
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Read more about Transformations at; brainly.com/question/21515360

#SPJ1

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