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son4ous [18]
2 years ago
9

If a jacket cost 89.99 and has a 30% discount and then I have an additional 35% off how do I solve this"? The equation set up

Mathematics
2 answers:
Neko [114]2 years ago
4 0

Answer:

if a jacket cost 89.99 so a 30 89.99

30

Vsevolod [243]2 years ago
3 0

Answer:

Below,...!

Step-by-step explanation:

First you take the 30% off of the original price:

30% or $89.99 = $26.997

Subtract the discount amount from the jacket amount:

$89.99 - $26.997 = $62.993

Second take the separate 35% off of your new price:

35% of $62.993 = $22.04755

Subtract the discount amount from the new jacket amount:

$62.993 - $22.04755 = $40.94545

Round to the nearest cent:

$40.95

Chow,...!

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A recent survey was conducted to compare the cost of solar energy to the cost of gas or electric energy. Results of the survey r
Mariana [72]

Answer:

c) at most 11.1%

Step-by-step explanation:

We have the data that is 97 ± 12, with 97 being the mean and 12 the standard deviation.

Now, the percentage of people who reached them for less than 73 dollars, if it were a normal distribution:

z = (73 - 97) / 12 = - 2

so it would be, a probability of 0.0228 or 0.228%.

But we don't know what distribution it has, but we can get an idea.

A and D discarded, as they are very high values, and 73 is well below the average.

B) is still a very high value.

Therefore the answer is C, at most 11.1%

4 0
3 years ago
Solve the following system of equations by the substitution method.
Dahasolnce [82]

Answer:

Step-by-step explanation:

5x=y+6   --------- equ 1

2x-3y=4  -------- equ 2

5x - 6 = y

y = 5x - 6

substitute in equ 2

2x-3(5x - 6) =4

2x - 3*5x + 3*6 = 4

2x - 15x + 18 = 4

- 13x = 4 - 18

-13x = -14

x = -14/-13

x = 14/13

substitute  in equ 1

5*14/13 = y+6  

70/13 - 6 = y

y =  ( 70 - 78)/13

y = -8/13

6 0
2 years ago
A DVD player that normally cost $160 is on sale for 70% of its normal price.What is the sale price of the DVD player.
maw [93]
160 $ = 100%
     x $ = 70%


100 x = 11200
     x =  112


160,00 - 112,00 =  48,00$


7 0
3 years ago
What is 30x4/100+59-29
Verdich [7]
Your answer is 31.2 hope that helps
7 0
2 years ago
Read 2 more answers
Krishna has $4.90 with a combined 34 nickels and quarters. How many of<br> each coin does she have?
Oksana_A [137]

Answer:

Step-by-step explanation:

-34 nickles is = 1.70

34 quarter is  = 8.50

1.70 plus 8.50 plus 4.90 = 15.1 i think

7 0
3 years ago
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