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sveta [45]
3 years ago
9

Mandy has a store cash certificate for $10 to a store. She also has a 10% coupon for the purchase of a single item but it cannot

be used with any other offer. If Mandy wants to buy a purse for $89.99 which way should she pay for it? Show work supporting your answer.
Mathematics
2 answers:
Olenka [21]3 years ago
5 0
The 10$ option is a about 9 cents cheaper than the 10%
gladu [14]3 years ago
4 0
$10 off would save the most money
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The value of the definite integral / 212x – sin(x) dx / 122x-sin(x) is
blondinia [14]

Hi there!

\boxed{= 70 + cos(12) - cos(2) \approx 71.26}

\int\limits^{12}_{2} {x-sin(x)} \, dx

We can evaluate using the power rule and trig rules:

\int x^n = \frac{x^{n+1}}{n+1}

\int x = \frac{1}{2}x^{2}

\int -sin(x) = cos(x)

Therefore:

\int\limits^{12}_{2} {x-sin(x)} \, dx = [\frac{1}{2}x^{2}+cos(x)]_{2}^{12}

Evaluate:

(\frac{1}{2}(12^{2})+cos(12)) - (\frac{1}{2}(2^2)+cos(2))\\= (72 + cos(12)) - (2 + cos(2))\\\\= 70 + cos(12) - cos(2) \approx 71.26

3 0
3 years ago
Your friend evaluated an expression using k = 0.5 and p =1/6 and got an answer of 12. Which expression did your friend evaluate?
Tom [10]
I think may be 8p +5k . If I’m wrong,... sorry
5 0
3 years ago
This is the question i need help with
vekshin1
I'm pretty sure it should be the 45. or A
4 0
3 years ago
5. photo album: $25.50, 10% markup
sasho [114]

Answer:

$28.05

Step-by-step explanation:

If you want to find how much the photo album is after the markup, you first have to find 10% of the original price. 10% of $25.50 is $2.55, so you add $2.55 and $25.50 to find the price after the markup.

Hope this helps!

3 0
2 years ago
Over a four-week period, Gail earned the following commissions: Week 1 $250.00 Week 2 310.00 Week 3 275.00 Week 4 195.00 What wa
s2008m [1.1K]
To find the average: the sum of the values/number of values
=250+310+275+195/4
=257.5
8 0
3 years ago
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