Let a = {10, 20, 30, 40, 50, 60} and b = {10, 40, 60}. what is a ∩ b?

{10, 40}
{40, 60}
{10, 40, 60}
{10, 20, 30, 40, 50, 60}

The A ∩ B is  {10, 40 ,60} .

Step-by-step explanation:

As given in the question

A = {10, 20, 30, 40, 50, 60}

B = {10, 40, 60}

The intersection A ∩ B of two sets A and B is represented the set that contains all elements of A that also belong to B .

Thus the A ∩ B becomes

A ∩ B = {10, 40 ,60}

Therefore the A ∩ B is  {10, 40 ,60} .

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w