12u + 12(15) = 756
multiply 12 and 15
12u + 180 = 756
subtract 180 from both sides
12u = 576
divide 12 on both sides
u = 48
Answer:
Step-by-step explanation:
<u>The travel is 2 circumferences:</u>
- 2C = 2*2πr = 4πr = 4*3.14*7 = 87.92 cm
Answer: Half the students weighed less than 7 pounds, 5 ounces, and half the students weighed more.
Step-by-step explanation:
