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My name is Ann [436]
3 years ago
15

Lest year Joe scored 80 point on his moth exam

Mathematics
2 answers:
Stella [2.4K]3 years ago
6 0

Answer:

20%

Step-by-step explanation:

Joe scored 20 percent because that's the answer.

mixer [17]3 years ago
5 0

Answer:

20%

Step-by-step explanation:

decreased score= 80-64 = 16

x% of 80 = 16

x=20

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In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store.
masya89 [10]

The correct answer is A, as the DVD player's price was reduced by $ 3.82 more than the stereo tuner's price.

In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store, and he marked down DVD players by 36%, and he marked down stereo tuners by 22%, if DVD Players cost $ 41.60 after the markdown and stereo tuners cost $ 69.42 after the markdown.

To determine which item's price was reduced by more, and by how many dollars more was it reduced, the following calculation must be performed:

  • 100 - 36 = 64
  • 64 = 41.60
  • 100 = X
  • 100 x 41.60 / 64 = X
  • 4160/64 = X
  • 65 = X
  • 65 - 41.60 = 23.40

  • 100 - 22 = 78
  • 78 = 69.42
  • 100 = X
  • 69.42 x 100/78 = X
  • 6942/78 = X
  • 89 = X
  • 89 - 69.42 = 19.58

Therefore, the DVD player's price was reduced by $ 3.82 more than the stereo tuner's price.

Learn more about maths in brainly.com/question/18629331

4 0
2 years ago
Write (8a^-6) in simplest form.
salantis [7]
It's 8/a^6 that's your answer
7 0
2 years ago
Please help me how do i solve 0.75a = -9 using a two step equation
Harrizon [31]
You would divide both sides by 0.75, to get a=-12.

I think this is a one- step equation, but that is the only way I think you can solve it.
8 0
2 years ago
Read 2 more answers
Help Please giving Brainliest answer!!!!!!!!!!!!!!!!!!
Nat2105 [25]
Vertical angles congruence theorem, then SAS
4 0
3 years ago
Maria, a biologist, is observing the growth pattern of a virus. She starts with 100 of the virus that grows at a rate of 10% per
Leni [432]
<h3>Answer: 985</h3>

=============================================

Work Shown:

A = amount after t hours

P = initial amount = 100

r = growth rate in decimal form = 0.10

t = number of hours = 24

--------

A = P*(1+r)^t

A = 100(1+0.10)^24

A = 100*(1.10)^24

A = 100*9.84973267580762

A = 984.973267580762

A = 985

5 0
3 years ago
Read 2 more answers
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