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 is 64 and a factor is 6/4 .
Answer:
$30.38
Step-by-step explanation:
To find the sale price, find the percentage you pay after the discount. The discount is for 38%. So you pay 62%.
The selling price of the scarf will be 0.62(49) = 30.38
