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Stells [14]
3 years ago
13

(MARKING BRAINLIEST) Kareem cannot decide which of two washing machines to buy. The selling price of each is ​$390. The first is

marked down by ​40%. The second is marked down by 10​% with an additional ​30% off. Find the sale price of each washing machine. Use pencil and paper. Explain why Kareem should buy the first washing machine rather than the second if the machines are the same except for the selling price.
Mathematics
2 answers:
azamat3 years ago
6 0
The selling price is $495
Tems11 [23]3 years ago
5 0

Answer:

See explanation

Step-by-step explanation:

The selling price is ​$495.

The first washing machine:

- is marked down by 30​%

$495 - 100%

$x - 100% - 30% = 70%

Find the value of x:

The second washing machine:

- is marked down by 20​% with an additional 10​% off

$495 - 100%

$y - 100% - 20% = 80%

Find y:

Now,

$396 - 100%

$z - 100% - 10% = 90%

Find z:

Thus, the sale price of the first washing machine is $347 and the sale price of the second washing machine is $356. The second machine is more expensive.

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Krista has a quiz today. There are 4 questions with 4 options. Each question only has one correct answer. She wants to guess and
Lyrx [107]

Answer:

The probability is 0.258

Step-by-step explanation:

In this question, we want to know the probability of Krista getting exactly 3 out of the options she chooses right.

For all the questions, there are 4 questions with 4 options each

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Probability of selecting exactly three correct ones will be;

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4 years ago
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serg [7]

Answer:

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You’re welcome

Step-by-step explanation:

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Now let's simplify this equation using the information that was given:
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Our new/updated equation is:
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