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dusya [7]
4 years ago
15

Which of the following is a perfect square? 18 81 50 32

Mathematics
2 answers:
ohaa [14]4 years ago
8 0

Answer:

The correct answer is 81

Step-by-step explanation:

Here are all the perfect squares.

1 2 1 × 1 1

2 2 2 × 2 4

3 2 3 × 3 9

4 2 4 × 4 16

5 2 5 × 5 25

6 2 6 × 6 36

7 2 7 × 7 49

8 2 8 × 8 64

<u>9 2 9 × 9 81</u>    81 Is a perfect square!

10 2 10 × 10 100

11 2 11 × 11 121

12 2 12 × 12 144

Can I have brainliest please?

lisabon 2012 [21]4 years ago
4 0
18 4 6 12 I think so idk because I’m confused on the same quation
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On Tuesday, a coffee sho sold the following: 20 coffees for $2.85 each and 17 lattes f r $4.80 each, If the coffee shop had to p
almond37 [142]

Ok so to solve this problem we're going to need to find out how much money they made (their revenue) and the subtract the cost of paying the employees.

So, let's start by finding their revenue

Step 1: Multiply the cost of each beverage by the number sold

Coffees: 20 x 2.85 = 57

Lattes: 17 x 4.80 = 81.6

Step 2: add up the money made from the coffees and the money made from the lattes to get the total revenue

57 + 81.6 = 138.6

So the shop made $138.60 on Tuesday. Let's set that aside while we find out how much the shop's costs were.

Step 3: Find the price of paying two employees for 6 hours

2 x 6 x 14.5 = 174

So the shop had to pay the employees $174.00 for working there.

Step 4: Find the overall profit/loss by subtracting the cost from the revenue

138.6 - 174 = -35.4

So the shop had a loss of $35.40 on Tuesday.


Hope that helps! Feel free to leave a comment or send me a message if I can clarify anything :)


7 0
3 years ago
Read 2 more answers
10 points
Mazyrski [523]
I think the answer is d I could be wrong
5 0
3 years ago
How many zeros are in the simplified expression ​
harina [27]
Nun man I think you could be trippin
6 0
3 years ago
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) Suppose that an urn contains 7 green, 8 red, and 9 yellow balls. You pick a ball at random and replace it. You then do this 9
IrinaVladis [17]

Title:

<h2>The required probability is 2.336\times 10^{-5} = 0.00002.</h2>

Step-by-step explanation:

In the urn, there are total (7 + 8 + 9) = 24 balls.

We are taking 10 balls out of the urn with replacement.

In each tern, we have overall 10 choices to chose 1 ball.

If we <u>want to get a green</u>, there are 7 choices each time.

Similarly, 8 choices each time for getting a red and 9 choices each time for getting a yellow ball.

The probability of getting green 2 times, red 3 times, and yellow 5 times is \frac{7^2 \times8^3\times9^5}{(24)^{10}} = 2.336 \times 10^{-5}.

3 0
3 years ago
Read 2 more answers
7) Rob and Amy are selling cheesecakes for a school fundraiser. Customers can buy New York
Firlakuza [10]

9514 1404 393

Answer:

  • New York style: $14
  • Chocolate Marble: $16

Step-by-step explanation:

We can let n and c represent the costs of the New York style and the chocolate marble cheesecakes, respectively. Then the two sales are ...

  11n +7c = 266 . . . . . . . Rob's sale

  4n +14c = 280 . . . . . . Amy's sale

The ratio of coefficients of c is a "nice" number (2), so we can eliminate the c variable easily to solve this. Dividing the second equation by 2 and subtracting it from the first gives ...

  (11n +7c) -(1/2)(4n +14c) = (266) -(1/2)(280)

  9n = 126 . . . . . . simplify

  n = 14 . . . . . . . . divide by 9

Filling this into the first equation, we have ...

  11(14) +7c = 266

  7c = 112 . . . . . . . . subtract 154

  c = 16 . . . . . . . divide by 7

One New York style cheesecake costs $14; one chocolate marble cheesecake costs $16.

3 0
3 years ago
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