If (a,-5) is a solution to the equations 3a=-2b-7, what is a?

a = 1

Step-by-step explanation:

Given : If (a,-5) is a solution to the equations 3a=-2b-7,

To find : what is a

Solution : We have given

(a,-5) is a solution to the equations 3a=-2b-7,

For a = a and b = -5.

3a = - 2(-5) - 7.

3a = 10 -7 .

3a =  3.

On dividing both side by 3.

a = 1

Therefore, a = 1

20ft

Step-by-step explanation:

Step one:

given data

a rectangular living room is 16 feet by 12 feet

Hence the Lenght = 16 ft

The width = 12 ft

Required

The diagonal of the room

Step two:

applying Pythagoras theorem we can find the diagonal as

d=√400

d=20 ft

diagonal is 20ft hence  the distance between opposite corners of the living room 20ft