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Gemiola [76]
3 years ago
14

A local clothing shop is marking down all of its summer clothes by 75%. sarah would like to purchase a swimsuit that is original

ly priced at $80. when she gets to the register, she signs up for a loyalty cars that saves her an additional 10%. how much did she spend on the swimsuit and what total percent did she receive off?
a. Find the markdown price of the swimsuit.

b. Then, find the markdown of the loyalty card.

c. Subtract to find the final price.
Mathematics
2 answers:
PilotLPTM [1.2K]3 years ago
4 0

A =$20 B=$8 C= $12.......

Wittaler [7]3 years ago
3 0

Answer:

$18.00

Step-by-step explanation:

75% of 80$ is 60$ .    

80$-60$=20$

10%of20$=2$

20$-2$=18$

18$

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scZoUnD [109]

Answer:

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Step-by-step explanation:

\boxed{\textsf{If }y=x^n,\: \textsf{then }\dfrac{\text{d}y}{\text{d}x}=nx^{n-1}}

<u>Given equation</u>:

2y=x^3+2x^2

Isolate y by dividing both sides by 2:

\implies y=\dfrac{1}{2}x^3+x^2

Differentiate with respect to x:

\implies \dfrac{\text{d}y}{\text{d}x}=3 \cdot \dfrac{1}{2}x^{3-1}+2 \cdot x^{2-1}

\implies \dfrac{\text{d}y}{\text{d}x}=\dfrac{3}{2}x^2+2x

Finally, substitute x = 2 into the differentiated equation:

\begin{aligned} \implies \dfrac{\text{d}y}{\text{d}x} & =\dfrac{3}{2}(2)^2+2(2)\\\\ & = \dfrac{3}{2}(4)+4\\\\ & = \dfrac{12}{2}+4\\\\ & = 6+4\\\\ & = 10\end{aligned}

Learn more about differentiation here:

brainly.com/question/27958412

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5 0
2 years ago
What is the value of x^3*y^1 when x=5 and y=10
Varvara68 [4.7K]

Answer:

1250

Step-by-step explanation:

x^3*y^1

Let x = 5 and y = 10

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PEMDAS says powers first

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Then multiply

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8 0
3 years ago
How to simplify this maths problem
Free_Kalibri [48]
-20-(-5)(-2^2)
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-40
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