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enyata [817]
2 years ago
7

Help with a,b,c answers

Mathematics
1 answer:
Ket [755]2 years ago
6 0
The answers For A,B,C.
A.2
B.2.25
C.1
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What is the smallest 6 digit palindrome that is divisible by 99
Scorpion4ik [409]

Answer:

  • 108801

Step-by-step explanation:

<u>6-digit palindrome is the number n the form of:</u>

  • xyzzyx

<u>This is divisible by 11 by default as the sum of the digits in odd placed is same as sum of the number in even places (remember the divisibility rule by 11):</u>

  • x + z + y = y + z + x

Now, in order to be divisible by 99, the number must be divisible by 11 and 9.

According to divisibility rule by 9 the sum of all digits must be divisible by 9. <u>You can see In our case we need to have (the minimum):</u>

  • x + y + z = 9

<u>The smallest number we could get is when x is minimum, y is minimum, so:</u>

  • x = 1, y = 0, then y = 8

<u>The number we get is:</u>

  • 108801

<u>Proof:</u>

  • 108801/99 = 1099
4 0
2 years ago
Read 2 more answers
A laptop costs $550. You get a coupon in the mail for 30% off. If you use the coupon, what is the sale price for the laptop?
34kurt
The answer appears to be three hundred eighty five can't wait to get those points! Hope your happy with your answer!
8 0
2 years ago
Is Garrett's slope correct? If not, identify his error?
dimulka [17.4K]

Answer:

B. No. He should have put the x values in the

denominator and the y values in the numerator.

Step-by-step explanation:

Took the assignment

8 0
3 years ago
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Seven people are in an elevator which stops at ten floors. In how many ways can they get off the elevator?
zlopas [31]

The number of ways people can get off the elevator is 604800 ways.

In this question,

Number of people, n = 7

Number of floors, r = 10

The first person can leave elevator in one of 10 ways. Then second person has to choose from one of remaining 9 floors. Then third person in 8, fourth in 7 ways and so on.

Number of ways people can get off the elevator can be calculated as

⇒ nP_r=\frac{n!}{(n-r)!}

⇒ 10P_{7}=\frac{10!}{(10-7)!}

⇒ 10P_{7}=\frac{10!}{(3)!}

⇒ 10P_{7}=\frac{(10)(9)(8)(7)(6)(5)(4)3!}{(3)!}

⇒ 10P_{7}=(10)(9)(8)(7)(6)(5)(4)

⇒ 604800 ways.

Hence we can conclude that the number of ways people can get off the elevator is 604800 ways.

Learn more about number of ways here

brainly.com/question/27992615

#SPJ4

4 0
1 year ago
3х – 8y = 19<br> 3х + 5y = — 46
Vadim26 [7]

Answer:

-5

Step-by-step explanation:

multiple the second equation by negative then subtract or add the equations and the answer will be negative 5

4 0
2 years ago
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