Forty-five of the 80 students in the club were girls what was the ratio of boys to girls in the club

9514 1404 393

  7 : 9

Step-by-step explanation:

If 45 of the 80 students were girls, then the remaining 35 will be assumed to be boys*. The ratio of boys to girls is ...

  35 : 45 = 7 : 9

* So far, math problems have only recognized gender identification as "boys" and "girls". This is not intended to insult anyone who has a different gender identification. Someday, issues of gender identification may be resolved in a different fashion. For now, we assume any student that is not a girl will be a boy.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

step-by-step explanation:

gym b charges $1.05 less per hour than gym a.