Question

1. The sum of two numbers is 4980. If 13% of the one number is equal to 17% of the other. Find the
number
2. Solve: 2x/3x + 1 = -3
3. Fill in the blanks: When you use distributivity, you split a product as a sum or difference of
products
4. Suate True False: Distributivity of Multiplication over Addition and subtraction, for all rational
Number ab and c, is a(b+c)=ab+ac.ab-c-ab-ac.
A) true
B) false
5. Asfaq's father is 26 years younger than Asfaq's grand mother and 29 years older than Asfaq. The sum
of the age of all is 135 years. What is the age of each one of them?
6. Write the additive inverse of (-9/13)
7. How many sides does a regular polygon have if the measure of an exterior angles has a measure of
165 degree
8. State Yes/No: Is division commutative for rational numbers?
A) YES
B) NO
9. Solve: 3f+42-61=-25
10. State True False: Polygon each of whose interior angles is less than 180, is called a convex polygon
A) true
B) false
11. Solve: 2/3+1=7115-3
12. Fill in the blanks Addition is associative for rational numbers. That is, for any __
numbers a, b and c. a + (b + c) = (a + b) + C.
rational
13. Identify all the quadrilaterals that have four rights angles.​

Answer 1

Answer:

1.

Let the two numbers be x and y

As per given data,

$x+y=4980$.............(1)

$13x=17y$

$y=\frac{13x}{17}$...........(2)

using (2) in (1)

$x+\frac{13x}{17}=4980$

$\frac{30x}{17}=4980$

$x=166*17$

$x=2822$

put $x=2822$ in (1) we get

$y=4980-2822$

$y=2158$

$\therefore$The required numbers are 2822 and 2158

2.

$\frac{2x}{3x+1}=-3$

$2x=-3(3x+1)$

$2x=-9x-3$

$2x+9x=-3$

$11x=-3$

$x=\frac{-3}{11}$

Solution is $x=\frac{-3}{11}$

Answer 2

A quadrilateral whose all sides are equal and has four right angles is called a Rhombus .