The given known values are:
Length of 4 cm
Width is unknown
Perimeter is 34 cm
Find the dimensions of the rectangle.
Since the geometric formula for perimeter is:
P= 2 (l + w)
L = 2w – 4 cm
W =?
Derivation and solution:
34 = 2 (2w - 4) + 2w
34 = 4w – 8 + 2w
42 = 6w
42/6 = w
**W = 7 cm
**
34 = 2l + 2(7)
34 = 2l + 14
2l = 34 – 14
2l = 20
L = 20/2
**L = 10
cm**
The width of the rectangle is 7 cm and the length is 10 cm, derived from the relationship between the length and width and the given perimeter.
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Jawaban:Rp24.500,00Penjelasan dengan langkah-langkah:= Rp35.000,00 × (100% - 30%)= Rp35.000,00 × 70%[tex] \tt = 35.000 \times \frac{70}{100} [/tex][tex] \tt = \frac{2.450.000}{100} [/tex]= Rp24.500,00[tex]\boxed{ \red{ \boxed{\pink{\mathcal{M \frak{ ilana} \purple{ \tt01}}}}}} [/tex]
DiketahuiHarga 35.000,00DitanyaHarga yang dibayar jika diskon 30%Dijawab[tex]35.000 \times 30\% \\ = 35.000 \times \frac{30}{100} \\ \\ = \frac{1.050.000}{100} = 10.500[/tex]Harga yang dibayar[tex] = 35.000 - 10.500 \\ = 24.500[/tex]KesimpulanMaka jawabannya 24.500