A:B=4:7. jika B-A=45, maka A+B?
Matematika
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Pertanyaan
A:B=4:7. jika B-A=45, maka A+B?
2 Jawaban
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1. Jawaban falenciayhay
A : B = 4 : 7
B - A = 45
7x - 4x = 45
3x = 45
x = 15
A + B =
4x + 7x =
4 x 15 + 7 x 15 =
60 + 105 = 165 -
2. Jawaban jonathanedwardp30bms
7x - 4x = 45
3x. = 45
x. = 15
4x + 7x =
4 × 15 + 7 × 15 = 165