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Sonja [21]
3 years ago
8

8 kg of potatoes and 5 kg of carrots cost $28 whereas 2 kg of potatoes and 3 kg of arrot cost $11.20.what is the cost of 1 kg of

each item
Mathematics
1 answer:
kow [346]3 years ago
5 0
1 kg of potatoes costs  x, 1 kg <span>of carrots costs y.

8x+5y=28 | :(-4)
2x+3y=11,2

-2x-1,25y=-7
2x+3y=11,2

3y-1,25y=11,2-7
1,75y=4,2
y=2,4

</span><span>1 kg of carrots costs $2,4.
</span>
<span>1 kg of potatoes costs:
</span>2x+3*2,4=11,2
2x+7,2=11,2
2x=11,2-7,2
2x=4
x=2
1 <span>kg of potatoes costs $2</span>

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Jewelery maker has
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3 years ago
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atroni [7]

Step-by-step explanation:

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kiruha [24]

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An artificial soccer pitch is 91 meters long and 43 meters wide. If the cost of the pitch is AED 20 per square meter. What is th
Novosadov [1.4K]

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The Cost of installing the artificial soccer pitch is $5360

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