Answer:
84t+64s-360
Step-by-step explanation:
Multiply through by a common factor
120×(1/5t+1/3s) + 120(-3+1/5s+1/2t)
(24t+40s) + (-360+24s+60t)
Group like terms
24t+60t+40s+24s-360
84t+64s-360
Answer:
x = 28
Step-by-step explanation:
The sum of the interior angles of a triangle is 180 degrees.
50 + 2x + (3x-10) = 180
5x = 140
x = 28
Easy Way
100÷40=2.5 is exact middle of the integers so 20 integers are above 2.5 and 20 integers are below
22..21..20..19..18..17..16..15..14..13..12..11..10..9..8..7...6..5..4..3
2.5
2..1..0..-1..-2..-3..-4..-5..-6..-7..-8..-9..-10..-11..-12..-13..-14..-15..-16..-17..
This link will show you different equations
http://web2.0calc.com/questions/the-sum-of-40-consecutive-integers-is-100-what-is-the-smallest-of-these-40-integers
12 out of 24 is 1/2
1/2 of 400 is 200, so the answer is 200 students.
