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Mashutka [201]
3 years ago
14

The price of a cup of coffee has dropped to $2.20 today. Yesterday's price was $2.35. Find the percentage decrease. Round your a

nswer to the nearest tenth of a percent.
Mathematics
2 answers:
WITCHER [35]3 years ago
4 0
6.4% decrease is the correct answer 
FromTheMoon [43]3 years ago
3 0
Convert the dollar amounts to cents to make the math easier.

$2.20 = 220¢
$2.35 = 235¢

The original price is 100%
The new price is x%

220/235 ≈ <span>0.93
</span>
Convert decimal into a percent by moving the decimal two places to the right and adding the % sign.

0.93 = 93%

100% - 93% = 7%

So, there was a 7% decrease in price.


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The constant of proportionality is 5/9

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y = 5/9 x

k = 5/9

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pickupchik [31]
I think it’s c I had this question lol
8 0
3 years ago
Read 2 more answers
PLEASE SHOW YOUR WORK.
schepotkina [342]

Answer:

a) Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7

b) The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as

98 square feet

Step-by-step explanation:

The area in, square feet, of Shawn’s garden is found be calculating 15(2x + 7). Shawn incorrectly says the area can also be found using the expression 30x + 7.

The correct area =

15(2x + 7).

= 30x + 105 square feet

The error in Shawn’s expression is

= 15(2x + 7)

= 30x + 7 square feet

Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7

The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as

30x + 105 square feet - 30x + 7 square feet

= 30x + 105 - (30x + 7)

= 30x - 30x + 105 - 7

= 98 square feet

7 0
2 years ago
What is the greatest common factor of 42,28 and 70?
eduard

Answer:

the greatest common factor would be 14 . Hope this helped

Step-by-step explanation:

7 0
3 years ago
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