Mass of freight train: 9.98 • 106
= 1057.88 kg
mass of aircraft carrier: 7.3 • 107
= 781.1 kg
difference: 1057.88 - 781.1
= 276.78 kg
= 2.7678 x 10^2
Answer:
no its A and B
Step-by-step explanation:
I thing the answer is 7 days
Teddy =X
Dolls= 2x-14
2x-14+X=52
3X-14=52
Add 14
3X=66
Divide by 3
X= 22
Teddy are 22
Dolls 2(22)-14=30
When you estimate, you round the decimal up.3.9 rounds up to 4 ,5.3 rounds up to 5.
4 times 5 equals 20.The actual answer is 20.67.
