The sum of the digits of a 2-digit number is 11. If the digits are reversed, the number formed is 45 more than the original number. Find the original number

Step-by-step explanation:

Let the two-digit number be 10t+u where t is the tens digit and u the units digit.

EQUATION:

t+u = 11

10u+t = 10t+u + 45

Rearrange the equations:

t+u = 11

9t-9u = -45

Simplify:

t+u = 11

t-u = -5

Add the equations to solve for "t":

2t = 6

t = 3

Substitute to solve for "u":

3+u = 11

u = 8

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo