Question

In a farm, the farmer counted 78 legs and 35 heads consisting of cows and hens. How many hens does he have?

Answer 1

4 c + 2 h = 78

c+h = 35 so 2h = 70-2c

4 c + 70 - 2c = 78

2 c = 8
c = 4

35 - 4 = 31 hens

Answer 2

In a farm a man counted his goats and hens .In all he had 30 legs and 13 heads.how many goats are in the farm and how many hens are in the farm

Answer 3

Count to find the area. Tell whether the area is exact or an estimate. Select the correct number or words from the drop-down menus to complete the statements.

An array of squares has 6 rows and 12 columns. In the second and third row, every square from the second to the eleventh is shaded. In the fourth row, every square from the third to the eleventh is shaded. In the fifth row, the eleventh square is shaded. A square below the array that is the same size as the squares in the array is labeled 1 square unit.

The area is
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units.

The area is
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.

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