4 years ago

Find the 123rd term of the sequence: 5, -5, 5, -5,.......

2 answers:

7 0

You see, every even number (2, 4, 6, 8, 10) is going to be negative. Every odd number (1, 3, 5, 7, 9) is going to be positive. Since 123 is odd, the answer is 5.

Lelu [443]4 years ago

4 0

The 123rd term of the sequence is 5

You might be interested in

John runs a computer software store. He counted 128 people who walked by his store in a day, 60 of whom came into the store. Of

balandron [24]

Answer:

The probability is 0.47.

Step-by-step explanation:

Given,

Total number of people who walked by his store = 128,

Out of these people the number of people who came into the store = 60,

Hence, the probability that a person who walks by the store will enter the store

$=\frac{\text{People who came in store}}{\text{People who walked by store}}$

$=\frac{60}{128}$

$=0.46875$

$\approx 0.47$

4 0

4 years ago

Divide 1 hour in the ratio 1 : 9 : 10

olganol [36]

Answer:

3 minutes; 27 minutes; 30 minutes

Step-by-step explanation:

Let the common multiplier of the given ratios be x. So, the ratios 1: 9 : 10 will become x, 9x and 10x respectively.

Therefore,

$x + 9x + 10x = 1 \: hour \\ \\ 20x = 60 \: minutes \\ \\ x = \frac{60 \: minutes}{3} \\ \\ x = 3 \: minutes \\ \\ 9x = 9 \times 3 = 27 \: minutes \\ \\ 10x = 10 \times 3 = 30 \: minutes$