1. Sum of x and 9y.
2. Product of 74 and 5y.
3. 24y less than 30.
4. One-fifth of the sum of x and y
5. Seven times the sum of 2x and 4x.
6. 4 more than twice the difference of 4 (and 3m if 4[ > 3m.
7. Diameter of a circle with radius.
8. Product of 8y and 6z added to one-fourth of b.
9. Perimeter of a square with side a.
10. Area of a rectangle with sides x and y.
Answers
Answer:
1. x+9y
2. 370y
3. 24y < 30
4. ⅕(x+y)
5. 42x
6. 4+2m
7. 2πr units
8. ¼b+48yz
9. 4a units
10. xy sq.units
Step-by-step explanation:
1. Add Both the terms. x+9y.
2. Multiply 74 by 5y = 74×5y. First, Multiply the constants. 74×5 = 370. At Last, Multiply 370×y = 370y.
3. 24y is Less than 30. So, 24y<30.
4. First Add x and y. (x+y). One-fifth means ⅕. Of Means Multiply. Therefore, Multiply (x+y) by ⅕. So, the answer is ⅕(x+y).
5. First, Add 2x and 4x. 2x+4x Gives 6x. Then, Multiply 7 and 6x. 7×6x = 42x.
6. 4m>3m, so subtract 3m from 4m. 4m-3m Gives m. Twice of m is 2m. 4 more to 2m is 4+2m.
7. Diameter Of a circle with radius r units is d = 2πr units.
8. First, Multiply 8x and 6x. 8x×6x = 48x. Add ¼b to 48x. We get, ¼b+48x.
9. Square has 4 equal sides. So, Perimeter of a square with sides a units is a+a+a+a = 4a units.
10. In rectangle, opposite sides are equal. Let x units be the length and y units be the breadth of the rectangle. We Know That, Area of a rectangle = lb sq. units. Substitute l = x and b = y in the formula, we get, Area = xy sq. units.