Question

1) Solve

a) Verify (-22)x[(-4)+(-5)=[(-22)x(-4)3+[(-22)x(-5)

b) In the Sahara desert, one day it was 146° F. In the Gobi Desert, a temperature of -54° F was recorded. What is the difference between

those two temperature ?

2) A sum of money was divided between Rajeev and Ashis so that Rajeev gets 7/19 of the whole amount. If he gets 5600, how much was the total sum.

3) Solve

a) The sum of two consecutive multiples of 2 is 18. Find the numbers. b) One of two numbers is twice the other. The sum of the number is 12. Find the numbers.

4) Find the area of an isosceles triangle whose perimeter id 32cm and its base

is 12cm.

5) Simplify the expressions and find their values if x=2, y=-1, z=-2

a) 4x-6y+z b)5x-6y²+7

6) Solve

a) If 27(2x-1)=243, then find the value of x. b) Write in the standard form:The diameter of Saturns largest ring is about

4.8x105km.

7) Lipika reads a book for 7/4 hours everyday.she reads the entire book in 6

days. How many hours in all were required by her to read the book?

8) What should be taken away from 3x2-4y+5xy+20 to obtain -x2-y2+6xy+20 ?​

Answer 1

Answer:

In the Sahara desert, one day it was 146° F. In the Gobi Desert, a temperature of -54° F was recorded. What is the difference between

those two temperature ?

2) A sum of money was divided between Rajeev and Ashis so that Rajeev gets 7/19 of the whole amount. If he gets 5600, how much was the total sum.

3) Solve

a) The sum of two consecutive multiples of 2 is 18. Find the numbers. b) One of two numbers is twice the other. The sum of the number is 12. Find the numbers.

4) Find the area of an isosceles triangle whose perimeter id 32cm and its base