Answer:
for every boys 8 and for girls 5
for every boys 5and for girls 8
Step-by-step explanation:
because first if we add both its answer is 13 and second question answer is also same
Answer:-3/2
Step-by-step explanation:
You would use distribution. So, in this case, it would be 10a - 50. You use -10 to multiply -a and 5, and you get 10a, and -50.
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
