Berapakah produktifitas jika model excavator w2215,kapasitas baket 3,4m³,waktu muat 015menit,waktu ayun bermuatan 0,07menit,waktu penumpahan 0,06menit,waktu ayun kososng 0,07menit,carry faktor 0,95,affisien kerja 0,83

With rounding: 4 is less than 5 so we round it down to whole number: 9.4 ≈ 9
6 is more than 5 so we round it up to whole number: 62.6 ≈ 63
Now we have to add rounded numbers 63 + 9 = 72
Without rounding: 62.6 + 9.4 to make it more visible I will write it differently:
62 + 9 + 0.6 + 0.4 is equal to 62.6 + 9.4
we can see that 0.6 + 0.4 is equal to 1
so: 62 + 9 + 1 = 72
As you see in this example those equations are equal so it doesn't matter if you take rounded numbers or not, it may be different in case like 62.4 + 9.4 ( 0.4 is just an example it could be any other number between 0 − 4 ) because in this case it will be equal 71 and another example 62.5 + 9.5 (in this case 0.5 is just an example, it can be any other number between 5 − 9 :) ) and here, answer for this equation is 73 .

Answered by Scryt | 2024-06-10

To estimate the total weight of two boxes that weigh 9.4 and 62.6 pounds using rounding and compatible numbers, we can round each number to the nearest ten. For 9.4, we round down to 10 pounds for simplicity, and for 62.6, we round up to 60 pounds so that the numbers are compatible (both ending in zero). Together this would give us an estimate of 70 pounds as the total weight.
To determine which estimate is closer to the actual total, we add the exact weights: 9.4 + 62.6 pounds equals 72.0 pounds. Comparing 70 pounds (estimate) to 72.0 pounds (actual), we can see that our estimate is very close, with a difference of 2 pounds.
The reason why the estimate is close is that we rounded each number to the nearest compatible number, which means that we tried to make the resulting numbers easy to add together mentally by rounding them to numbers that fit well together. In this case, ending both in zero made the calculation straightforward.

Answered by MonteBlue | 2024-06-19

Using rounding, the estimated total weight of the boxes is 72 pounds, which is equal to the actual total weight of 72 pounds. Thus, the estimate is very accurate. This example demonstrates how rounding can be both practical and precise in this case.
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Answered by Scryt | 2024-09-04

Diketahui: • Kapasitas bucket (q) = 3,4 m³ • Waktu muat = 0,15 menit • Waktu ayun bermuatan = 0,07 menit • Waktu bongkar = 0,03 menit • Waktu ayun kosong = 0,06 menit • Efisiensi kerja (E) = 0,83 • Koefisien bucket fill = 0,9⸻ 1. Hitung Total Waktu Siklus (Cycle Time):\text{Cycle Time} = 0{,}15 + 0{,}07 + 0{,}03 + 0{,}06 = 0{,}31\ \text{menit}⸻ 2. Jumlah Siklus per Jam:\frac{60}{0{,}31} \approx 193{,}5\ \text{siklus/jam}⸻ 3. Produktivitas (m³/jam):Gunakan rumus:Q = \text{Kapasitas Bucket} \times \text{Fill Factor} \times \text{Jumlah Siklus} \times \text{Efisiensi}Q = 3{,}4 \times 0{,}9 \times 193{,}5 \times 0{,}83 \approx 490,78\ \text{m³/jam}⸻✅ Jawaban Akhir:Produktivitas excavator W2215 ≈ 490,78 m³/jam

Answered by rapipap27 | 2025-07-11