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ANTONII [103]
3 years ago
11

Describe two methods for finding the sale price of an item that is discounted 30%. which method do you prefer? Explain.

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
6 0
One can take the price of the item before the discount is applied and subtract that from  the percentage off and get the cost of the item. 

I find this is the most effective way. 

another method could be if one turned the percentage into a decimal it could be subtracted from the cost of the item.
mojhsa [17]3 years ago
5 0

Answer:

1. Find the value of the discount amount, and subtract from the original.

2. Find the value of the item after discount by using 100%-30%.

I prefer the second, as it is faster.

Step-by-step explanation:

1. Find the value of the discount amount, and subtract from the original.

Say y is the amount you pay after the discount, and x is the original price, the calculation will look like this:

The value of the discount is 30% of x, which is equal to 0.3x.

subtract that from the original value to find y:

<em>y = x - 0.3x</em>

2. Find the value of the item after discount by using 100%-30%.

The amount left over after subtraction thirty % is 70%

Thus,

<em>y = 0.7 x</em>

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Ethan purchased a container of sports drink that contains 300 calories. The label says that 80% of the calories are from carbohy
MA_775_DIABLO [31]
240 each 10 percent is 30 calories multiply them by ten gets you 300
7 0
3 years ago
Express these system specifications using the propositions p “The user enters
Alex73 [517]

Answer:

a) r ⋀~p

b)(r⋀p)⟶q

c) ~r ⟶ ~q

d) (~p ⋀r) ⟶q

Step-by-step explanation:

To solve this question we will make use of logic symbols in truth table.

We are told that;

p means "The user enters

a valid password,”

q means “Access is granted,”

r means “The user has paid the

subscription fee”

A) The user has paid the subscription fee, but does not enter a valid

password.”

Fist part of the statement is correct and so it will be "r". Second part of the statement is a negation and will be denoted by ~p. Since both statements are joined together in conjunction, we will use the conjuction symbol in between them which is "⋀" Thus, we have; r ⋀~p

B) Still using logic symbols, we have;

(r⋀p)⟶q

⟶ means q is true when r and p are true.

C) correct symbol is ~r ⟶ ~q

Since both statements are negation of the question. And also, if ~r is true then ~q is also true.

D) Similar to answer A to C above, applying similar conditions, we have (~p ⋀r) ⟶q

8 0
3 years ago
A hot air balloon can hold u to 300 pounds of weight the balloons pilot weighs 140 pounds how many 20 pound bags of sand b can h
Kazeer [188]
300 - 140 = 160
160/20=

8
3 0
3 years ago
Read 2 more answers
I need help with this problem .
lozanna [386]

Answer:

D because the BC is the radius line

7 0
3 years ago
Help gai I need help its a math
dem82 [27]

Answer:

B

Step-by-step explanation:

Rewriting in slope-intercept form.

x - 2y = 0

Add -x on both sides.

- 2y = 0 - x

Divide both sides by -2.

y = 0/-2 - x/-2

y = 0 - - 1/2x

y = 0 + 1/2x

y = 1/2x + 0

The slope is 1/2, the y-intercept is at (0, 0).

6 0
3 years ago
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