Answer:
she multiplied the numbers to itself
Answer:
-3 < x < 0
Step-by-step explanation:
1 < x + 3 < 4
-3 < x < 0
Answer:
Step-by-step explanation:
4a+2(b+5a)+7
4a+2b+10a+7
4a+10a+2b+7
14a+2b+7
There would be 12 girls and 18 boys. Since the ratio is 2:3, there are 5 parts total (2+3=5) With 30 students, each part equals 6 students (30/5=6) Therefore the two parts that are girls would be 6 x 2, or 12 students, leaving the remainder of students, 18, to be boys