Is the ratio 15 : 12 equivalent to 5 : 3 and 10 : 6? Explain.

Yes it is

Step-by-step explanation:

When we simplify 15:12, we receive 5:3

Therefore, 5:3 is equvilaent to 15:12

Using this unit ratio, we can solve for other rations

For example, 5:3, the unit ratio, times 2 is 10:6

5 * 2 = 10

3*2 = 6

10, 6 = 10:6

b

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.