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
Step-by-step explanation:
The total bill will be the sum of the rent and the cost for the total time spent.
$15 + $6 * 2.5
$15 + $15
$30
Answer:
I think is (A)
They got same y intercept
they both cross at 0
but they are opposite graph like X
Step-by-step explanation:
It's 28. here's proof 1/4 is 7, 1/2 is 14, 3/4 is 21, and 4/4 is 28.
The answer is 13/15.
2/5 = 12/30
2/3 = 20/30
12/30 + 20/30 - 6/30 = 32/30 - 6/30 = 26/30 = 13/15.
