class 7 questions
please answer me these questions also
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Answer:
9. 21/10 or 2 1/10
10. 21/4 or 5 1/4
Step-by-step explanation:
9. Let a be the side of an equilateral triangle. So,
a = 7/10 cm
Perimeter of an equilateral triangle = 3a
= 3 x 7/10 cm
= 21/10 or 2 1/10
10. Let x be the distance vijay walks in a day
So in 3 days,
3x = 15 3/4
x = 15 3/4 ÷ 3
= 63/4 ÷ 3
= 5 1/4
11. Let x be the cost of 1 kg of apples
So, x = 400/ 6 1/4kg
= 64 rupees
Therefore, the cost of 1 kg of apples is 64 rupees.
HOPE IT HELPED :)
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