So we solve for each
70% of 100=70
students who didn't buy lunch=100-70=30
some of the 70 left so that the students who bought lunch, are 60% of those who are left
we know that the students who didn't buy lunch didn't change number so therefor
100% of students left-60%=40%= students that didn't buy lunch=30 so
40%=30
20%=15
100%=75
there were 75 students lfet in the cafeteria
Answer:
240
Step-by-step explanation:
6 x 6 x 4 = 144
1/3 x (6 x 6) x 8 = 12 x 8 = 96
96 + 144 = 240
i am 90% sure about this
Answer:
4
Step-by-step explanation:
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Answer: 3xy = 1. Example 2: Simplify 7a + 5b - 6b + 8a 2b = 0. Solution: Step 1: group together the like terms
Answer:
10
Step-by-step explanation:
2^2 x 5^2 = 100
root the 100 = 10