The ratio of boys to girls is 5:1 if there are 60 more boys than girls workout how many people there are in total

80

Step-by-step explanation:

Let the number of girls be x

Therefore, the number of boys will be: = x + 60

The ratio of boys to girls is 5:1. Using this and equating to the number of bits and girls will be:

5/1 = x + 60/ x

Cross multiply

5x = x + 60

5x - x = 60

4x = 60

x = 60/4

x = 15

Number of girls = 15

Therefore boys will be: = x + 60 = 15 + 60 = 75.

Total number of people = 15 + 75 = 80

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.