1. Tentukan nilai tempat setiap angka pada bilangan-bilangan desimal di bawah ini: a.625,01 b.20,089 c.2,569 d.76,521

The problem doesn't say it, but we have to assume that David and Louis both open their bank accounts at the same time, so that the number of months is the same for both of them.
-- David starts with 140 and deposits 150 each month. After ' M ' months, he has ( 140 + 150 M ) in his account.
-- Louis starts with 260 and deposits 120 each month. After ' M ' months, he has ( 260 + 120 M ) in his account.
We need to find the number of months ' M ' when both accounts have the same amount in them.
140 + 150 M = 260 + 120 M
Subtract 140 from each side: 150 M = 120 + 120 M
Subtract 120M from each side: 30 M = 120
Divide each side by 30 : *** M = 4***
Check: After 4 months . ..
-- David has 140 + 150 M = 140 + 150( 4 ) = 140 + 600 = $740
-- Louis has 260 + 120 M = 260 + 120( 4 ) = 260 + 480 = $740
-- They're equal. yay !
For any other number of months, more than 4 or less than 4, they're not equal.

Answered by AL2006 | 2024-06-10

David and Louis will have equal amounts in their bank accounts after 4 months. The calculations show that both will have $740 at that time. The option selected is B. 4.
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Answered by AL2006 | 2024-10-11

Penjelasan dengan langkah-langkah:a. 625,016 Ratusan2 Puluhan5 Satuan0 Persepuluhan1 Perseribuanb. 20,0892 Puluhan0 Satuan0 Persepuluhan8 Perseratusan9 Perseribuanc. 2,5692 Satuan5 Persepuluhan6 Perseratusan9 Perseribuand. 76,5217 Puluhan6 Satuan5 Persepuluhan2 Perseratusan1 Perseribuan

Answered by xiennana020626 | 2025-07-17