Question

a trailer can pull a total of 6,000 pounds. which pair of cars can the trailer pull at the same time? estimate to find out.
4,163 lb 2,239 lb
3,927 lb 2,838 lb
3,927 lb 1,904 lb
4,163 lb 2,838 lb

Explanation:

Step1: Estimate first pair (4163 + 2239)

Round 4163 to 4200, 2239 to 2200. Sum: \( 4200 + 2200 = 6400 \) (over 6000).

Step2: Estimate second pair (3927 + 2838)

Round 3927 to 3900, 2838 to 2800. Sum: \( 3900 + 2800 = 6700 \) (over 6000).

Step3: Estimate third pair (3927 + 1904)

Round 3927 to 3900, 1904 to 1900. Sum: \( 3900 + 1900 = 5800 \) (under 6000).

Step4: Estimate fourth pair (4163 + 2838)

Round 4163 to 4200, 2838 to 2800. Sum: \( 4200 + 2800 = 7000 \) (over 6000).

Answer:

The pair with cars weighing 3,927 lb and 1,904 lb (the third pair: red truck and blue car).