Question

Q.2 Do all sums-
1. Write the following equation in statement form 2m = 7
2. Which is greater: 0.7 or 0.5
3. Express as rupees using decimals: 50 paise
4. Subtract: 6xy from -12xy
2
2
8
9321
5. Arrange the following in descending order:
6. If m=1, find the value of 3m² - 2m +7
7. Solve the following equation: 3 (n-5) = 21
8. Find: 76.5-0.15
9. Identify term which contain x and give the coefficient of x:
1 + x + xy
10. Find the mode and median of data:
13, 16, 12, 14, 19, 12, 14, 13, 14​

Answer 1

Step-by-step explanation:

1) 2 times m is equal to 7.

2) 0.7 is greater.

3) 50/100 = ₹0.5

4) -12xy - 6xy = -18xy

6) m = 1

3m^2 - 2m + 7

= 3 × 1^2 - 2 × 1 + 7

= 3 - 2 + 7

= 8

7) 3(n - 5) = 21

3n - 15 = 21

3n = 21 + 15

3n = 36

n = 36/3

n = 12

8) 76.5 - 0.15

= 76.35

9) Coefficient of x is 1

10) Ascending order= 12 ,12 ,13 ,13 ,14 ,14 ,14 ,16 ,19

median = middle observation

= 14

mode = most occuring observation

= 14 ( 3 times)

Hope it's helpful