Mathematics, 13.11.2020 05:50 paolaz80045

Which expression can be used to find the price of a $400 telescope after a 32% markup? Select all that apply. A. 400 • 0.32
B. 400 • 3.2
C. 400 • 1.32
D. 400 + 400(0.32)
E. 400 • 400(1.32)

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Answer from: nanaflower321

Expressions C and D correctly determine the markup price.

Step-by-step explanation:

A markup in mathematics is when an object's price is raised by a certain percentage. Therefore, because we are told that the telescope is originally $400 and is marked up by 32%, we can actually mathematically evaluate this.

When you markup a price, you multiply the original price by 1+x , where x is the percentage at which the object is marked up. However, x needs to be in decimal form for it to work out.

$\frac{32}{100} = \small\boxed{0.32}$

Therefore, with this new decimal, we can add 1 to it.

$1 + 0.32=\small\boxed{1.32}$

Finally, we multiply this result by the original price.

$1.32 \times 400=\small\boxed{528}$

Therefore, we can already confirm that Expression C is one way to find the markup price.

We can eliminate expression A because it did not use the formula 1+x

. It only uses the decimal form of the percentage.We can eliminate expression B because the division to convert from the percentage form to the decimal form is flawed (the expression divided by 10 instead of 100) and also forgot to add 1 to the determined value.

Now, we can test the math for expressions D and E to see if either of these will equal $528.

Expression D is basically saying to add 32% of 400 to the original price. This would work out because we marked up the original price by 32%. Therefore, we can confirm that Expression D is also an expression that can be used to determine the markup price.

$400 + 400(0.32)\\400(0.32) = 128\\400 + 128 = \small\boxed{528}$

Finally, we also need to check expression E. This expression is saying to add the already marked up price to 400. This would not be correct.

$400 \times 400(1.32)\\400(1.32) = 528\\400 \times 528 = \small\boxed{\$ 211,200}$

Therefore, it has been determined that Expression C & Expression D are both equations that will find a markup price.

Answer from: Quest

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t. then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

Answer from: Quest

Sin(a)+cos(a)+cot(a)-1=2(csc(x)+1)

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Which expression can be used to find the price of a $400 telescope after a 32% markup? Select all th...