The ratio of the number of boys to the the number of girls in a school is 5 : 7 if there is 600 students in the school. how many girls are there?

the answer is 250 boys and 350 girls

5+7=12

600/12=50

boys: 5x50= 250

girls:7x50=350

all it means is function 3

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950