Answer:
2.25 kg
Step-by-step explanation:
6 x 375 = 2250
1 kg = 1000 g
⇒ 2250 ÷ 1000 = 2.25 kg
The lines mean that the number is going to become positive. |-178| will become positive meaning it will become= |178|
Colfax:
Add the ratio numbers together:
5 + 4 = 9
Divide total students by that:
270 / 9 = 30
Multiply each ratio by 30:
Boys = 30 *5 = 150
Girls = 30 * 4 = 120
Do the same for Winthrop:
4 +5 = 9
180 /9 = 20
Boys = 20 * 4 = 80
Girls = 20 * 5 = 100
Total students = 270 + 180 = 450
Total Girls = 120 + 100 = 220
Fraction that are girls = 220 / 450 which reduces to 22/45
Differentiate both sides wrt 
:
By the chain rule, we get
Solve for 
:
You'd times15x25 and you'll gladly get the answer
