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o-na [289]
3 years ago
15

4x-3y=4 -12x+5y=-12 Solve for elimination

Mathematics
1 answer:
Anarel [89]3 years ago
5 0

Answer:

x=1 y=0

Step-by-step explanation:

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Edward brought 49 9/20 kg kg of guavas on his school trip. He distributes 16 3/5 kg of guavas in the first quarter of the trip,
soldi70 [24.7K]

Answer: 7\dfrac{24}{40}\ kg

Step-by-step explanation:

Given

Edward bought 49 \frac{9}{20}\ kg

he distributes 16\frac{3}{5}\ kg in first trip

In second trip 7\frac{4}{8}\ kg

In third trip, it is 17\frac{3}{4}\ kg

Subtract the sum of first three trips from the total to get the last trip guavas

and convert mixed fraction to fractions

\Rightarrow 49\dfrac{9}{20}-[16\dfrac{3}{5}+7\dfrac{4}{8}+17\dfrac{3}{4}] \\\\\Rightarrow 49+\dfrac{9}{20}-16-7-17-[\dfrac{3}{5}+\dfrac{4}{8}+\dfrac{3}{4}]\\\\\Rightarrow  9+\dfrac{9}{20}-\dfrac{24+20+30}{40}\\\\\Rightarrow 9+\dfrac{18-74}{40}\\\\\Rightarrow 9-\dfrac{56}{40}\\\\\Rightarrow \dfrac{360-56}{40}\\\\\Rightarrow \dfrac{304}{40}\ or\ 7\dfrac{24}{40}\ kg

Thus, 7\frac{24}{40}\ kg of guavas  are left for the last trip.

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