3 years ago

Find the common difference of the sequence 9,21,33,45,...

2 answers:

7 0

In our given sequence, a(1) = 3, n = 17, and d = 6 (the common difference)...thus we get
a(n) = 3 + (n-1)(6)
a(17) = 3 + (17-1)(6)
a(17) = 3 + 96 = 99

9966 [12]3 years ago

5 0

The answer is 12. If you read from left to right, the numbers go up 12, if you go from right to left, they go down 12. Hope this helps!

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You and your mom enter a drawing with 3 different prizes. A total of 9 people entered the drawing, and prizes are awarded random

julsineya [31]

Answer:

$\frac{1}{72}$

Step-by-step explanation:

We have been given that there are total 9 people who entered the drawing competition. There are 3 prizes to be distributed to the winners. The total number of ways that 3 prizes can be awarded to the 9 people can be determined as 9*8*7 = 504.

The total number of ways in which I win the first prize and my mom wins the second prize would be 1*1*7 = 7.

Therefore, the probability that I win the first prize and my mom wins the second prize would be: $\frac{7}{504}=\frac{1}{72}$

5 0

3 years ago

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Work out 27 ÷ 9 + 9 Work out 4 + 5 x 3 Work out -9 + -4 ) Work out 9 - -5

san4es73 [151]

Answer:

1. 27/9=3+9=12

2. 4+5x3=5x3=15+4=19

3. -9+-4=-13

4. 9--5=14

7 0

3 years ago

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A runner is 7/8 mile from the finish line. If she can travel 3/8 mile per minute, how long will it take her to finish the race?

slavikrds [6]

About 2 minutes and 33 seconds?
[ I apologize if this is wrong ]

7 0

4 years ago

The sum of 5 and the twice a number is at most 27

LiRa [457]

If you are looking to write an inequality equation that models this situation, then the answer would be: $5+2x\leq 27$ . The "at most" signals to use the less than or equal to sign.

3 0

4 years ago

The next two terms are and

kherson [118]

Answer:

The next two terms are 92 and 105.

Step-by-step explanation:

79 + 13 = 92

92 + 13 = 105

4 0

3 years ago