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VARVARA [1.3K]
3 years ago
8

Which of the following expressions could be used to find the sale price of an item that costs d dollars if it is on sale for 30%

off?
Mathematics
1 answer:
Reptile [31]3 years ago
6 0

Answer:

d-30%d

Step-by-step explanation:

You might be interested in
The ratio of isabellas money to shanes money is 3:11. If isabella has $33, how much money do Shane and Isabella have together?
solong [7]
The ratio of Isabella’s money to Shane’s money is 3:11

Isabella has $33.   

We can make a proportion to solve for how much money Shane has.   
A proportion is two ratios that are set equal to each other.  

Let’s call Shane’s money ‘S’   

We get this proportion:   3/11 = 33/x   

If we cross multiply we get:   
(33) * (11) = (3) * (x)   

Simplifying it, we get:
363 = (3) * (x)   

Divide both sides by 3, we get:
x = 121   

However, the question asks how much money they have together. 

Isabella + Shane = Total
33 + 121 = $154   

<span>They have $154 together.</span>
4 0
3 years ago
Determine if true:<br> 8x2-63=-40
prohojiy [21]

Answer:

False

Step-by-step explanation:

8x2=16

16-63=-47

-47=-40

The numbers do not match.

Hence, the equation is false.

3 0
2 years ago
Read 2 more answers
SHOW YOUR WORK! Marking the best response with brainliest:) thank u
sdas [7]

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

The length is 3x + 7

The width is 2x + 2

The perimeter is

<h3>2( 3x + 7) + 2( 2x + 2)</h3>

Simplify

6x + 7 + 4x + 4

Group like terms

6x + 4x + 7 + 4

We have the final answer as

<h3>10x + 11</h3>

Hope this helps you

6 0
3 years ago
What is the real part of the complex number when 4 plus 5i is multiplied with 2 minus i?
Nady [450]

Answer:

What I do not understand what you are asking, can you repeat it pls.

Step-by-step explanation:

3 0
3 years ago
A boat costs $14,000 and decreases in value by 5% per year. How much will the boat be worth after 3 years?
kati45 [8]

Answer:

$12,003.25.

Step-by-step explanation:

The boat's values after each year is  $14,000 * (100-5)%, so

the equation is A = 14000(0.95)^3

= $12,003.25.

8 0
3 years ago
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