Berikut ini adalah pertanyaan dari tejashviikanna pada mata pelajaran Matematika untuk jenjang Sekolah Dasar
Use the following clues to find how far Anna's home is from her school.
+
Mall
+
Post office
School
Home
• The post office is 2 2/5 km from Anna's school.
• The mall is 1 1/10 km from the post office.
10
• Anna's home is 2 3/10
km from the mall.
Jawaban dan Penjelasan
Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.
Jawab:
3 3/5 kilometers
Penjelasan dengan langkah-langkah:
From question, we know these information:
With assumption: Anna’s School is the starting point (0 km).
Correct Order From School to Home:
School (S) ---> Mall (M) ---> Post office(P) ---> Home (H)
P is 2 2/5 km from S.
Then the distance (P - S) is 2 2/5 km
M is 1 1/10 km from P.
Then the distance (P - M) is 1 1/10 km
H is 2 3/10 km from M.
Then the distance (H - M) is 2 3/10 km
What is the total distance between Home and School (H-S)?
Dist. (H-S) = …?
= Dist. (H-P) + Dist.(P-M) + Dist. (M-S)
(Remember Dist. (H-M) is a total from Dist. (P - M) + Dist. (H-P). So, Dist. (H-P) = Dist. (H-M) - Dist. (P - M).
Remember Dist. (P-S) is a total from Dist. (P - M) + Dist. (M-S). So, Dist. (M-S) = Dist. (P-S) - Dist. (P - M).)
= Dist. (H-M) - Dist. (P - M) + Dist.(P-M) + Dist. (P-S) - Dist. (P - M)
= Dist. (H-M) + Dist. (P-S) - Dist. (P - M)
= 2 3/10 km + 2 2/5 km - 1 1/10 km = ( (2+2-1) + (3/10+2/5-1/10) )km
= (3 + (3/10+4/10-1/10) )km
= (3 + (6/10) )km
= 3 6/10 km
= 3 3/5 km
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Last Update: Sun, 08 Jan 23