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Helga [31]
3 years ago
6

julie buys 2kg of apples and 7kg of pears £12.70. the pears cost £1.30 per kilogram what is the price per kilogram of the apples

? show your working out
Mathematics
2 answers:
Natali [406]3 years ago
8 0

Answer:

£1.80 is the price per kilogram of the apples

Step-by-step explanation:

Here, x represents the number of apples per kilogram  and y represents the number of pears per kilogram.

As per the statement:

Julie buys 2kg of apples and 7kg of pears £12.70.

⇒2x+7y = 12.70          ....[1]

It is also given that the pears cost £1.30 per kilogram

⇒y =£1.30

Substitute in [1] we have;

⇒2x+7 \cdot 1.30 = 12.70  

⇒2x+9.10= 12.70  

Subtract 9.10 from both sides we have;

⇒2x= 3.60  

Divide both sides we have;

x =£1.80

Therefore, £1.80 is the price per kilogram of the apples

Maru [420]3 years ago
4 0
1.44 per kg

take 1.3 x 2, then subtract 12.7, finally divide that by 7
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