formula of equation Maharashtra board 6th cllas
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Answers
Answer:
Example: The formula for finding the volume of a box is:
x = 2y - 7 Formula (relating x and y)
a2 + b2 = c2 Formula (relating a, b and c)
x/2 + 7 = 0 Not a Formula (just an equation)
Answer:
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Page No 51:
Question 1:
Different mathematical operations are given in the two rows below. Find out the number you get in each operation and make equations.
16 ÷ 2, 5 × 2, 9 + 4, 72 ÷ 3,
4 + 5 8 × 3, 19 − 10, 10 − 2,
37 − 27, 6 + 7
ANSWER:
16 ÷ 2 = 8
5 × 2 = 10
9 + 4 = 13
72 ÷ 3 = 24
4 + 5 = 9
8 × 3 = 24
19 − 10 = 9
10 − 2 = 8
37 − 27 = 10
6 + 7 = 13
So,
16 ÷ 2 = 10 − 2
5 × 2 = 37 − 27
9 + 4 = 6 + 7
72 ÷ 3 = 8 × 3
4 + 5 = 19 − 10
Page No 55:
Question 1:
Rewrite the following using a letter.
(1) The sum of a certain number and 3.
(2) The difference obtained by subtracting 11 from another number.
(3) The product of 15 and another number.
(4) Four times a number is 24.
ANSWER:
(1)
Let the certain number be x.
∴ Sum of a certain number and 3 = x + 3
(2)
Let another number be x.
∴ Difference obtained by subtracting 11 from another number = x − 11
(3)
Let another number be x.
∴ Product of 15 and another number = 15 × x = 15x
(4)
Let the number be x.
Four time a number = 24
∴ 4 × x = 24
⇒ 4x = 24