Seseorang dapat membaca dengan jelas pada jarak paling dekat 125 cm. Agar ia dapat membaca dengan jelas pada jarak 25 cm, kekuatan lensa kacamata yang diperlukan adalah...
Answer (4)
Hello,
the bag decreased one third, so its weight decreases the same, so:
4 3 p o u n d − 4 3 p o u n d ∗ 3 1 = 4 3 p o u n d − 4 1 p o u n d = 4 2 p o u n d = 2 1 p o u n d
Answer: it weighs 1/2 pound
The bag of peanuts weighs 2 1 pound.
To determine the current weight of the bag of peanuts, we need to calculate the weight of the remaining peanuts.
Step 1: Calculate the weight of the remaining peanuts.
Given that the bag was initially 3/4 of a pound and is now 2/3 full, we can find the weight of the remaining peanuts by multiplying the initial weight of the bag by the fraction of the bag that is still full.
Weight of remaining peanuts = ( 4 3 pound ) × ( 3 2 )
Weight of remaining peanuts = 4 3 × 3 2 pound
Weight of remaining peanuts = 4 × 3 3 × 2 pound
Weight of remaining peanuts = 12 6 pound
Weight of remaining peanuts = 2 1 pound
The bag of peanuts was initially 3/4 of a pound. As it is now 2/3 full, only 2/3 of the original peanuts remain. By multiplying the initial weight of the bag by the fraction of the bag that is still full, we find that the bag now weighs 2 1 pound. Therefore, the correct answer is that the bag of peanuts now weighs 2 1 pound.
Complete question
Erin buys a bag of peanut that weighs 3/4 of a pound later that week the bag is 2/3 full how much dose the bag of peanuts weigh now ?
The bag of peanuts now weighs 2 1 pound after being 3 2 full. This was calculated by multiplying the original weight of 4 3 pound by 3 2 . Therefore, the final weight is 2 1 pound.
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Sn = jarak titik dekat mata (jarak baca minimum seseorang)
