Set up the equation by writing the number of students in the ratio as a fraction:
3/4= (245-x)/x Cross multiply:
3x= 4(245-x) Multiply on right:
3x= 980-4x Add 4x on both sides:
7x= 980 Divide both sides by 7:
x= 140 this is how many girls there are. And:
245-140= 105= boys
Answer: 8 37/40
Step-by-step explanation:
Divide 357 by 40!?
Answer:
22
Step-by-step explanation:
Answer:

Step-by-step explanation:

Any number less than -3, so -3.5, -4, -5, -6, -6.35368, -7, etc.