Answer: 624
Step-by-step explanation:
12 times 8 is 96 and 96 divided by 2 is 48 and 48 times 13 is 624
Answer:
They studied for a little more than an our. A
Step-by-step explanation:
Because if you multiply 4 on 2/3 you get 8/12, then add 8/12 and 7/12 together to get 15/12 simplified 1 3/12.
Answer:
Area = 42.43 square cm
Step-by-step explanation:
Using Heron's Formula :

<em><u>Find Area :</u></em>
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4+2x = x (x = student in smaller group)
4 + 2x + x = 28 (total # of students)
4+ 3x = 28
3x = 24
x = 8
8 students in the smaller group
4 + 2(8) = 20 students in the larger group