4 months ago
Q:

Please tell me how you solve these problems! I don't get it! :(

Accepted Solution

A:
18 c

the answer is 7.5 square units
[tex]((1 + 4) \times 3) \div 2 = (5 \times 3) \div 2 \\ = 15 \div 2 = 7.5[/tex]


18 b

the answer is 10.5 square units
[tex]((5 + 2) \times 3) \div 2 = (7 \times 3) \div 2 \\ = 21 \div 2 = 10.5[/tex]

18 a

the answer is 12 square units
[tex]((4 + 2) \times 4) \div 2 = (6 \times 4) \div 2 \\ = 24 \div 2 = 12[/tex]




good luck