Question

1)-1.2*3а 3)-5b*2.4c 5)-4/15x*5/16*(-y)​

Answer 1

1)-1.2*3a=-3.6a

2)-5b*2.4c=-12bc

3)-4/15x*5/16*(-y)=1/7y

Answer 2

To simplify the given expressions, let's perform the calculations step by step:

1. -1.2 * 3a

To simplify, we just multiply the constant (-1.2) by the variable (3a):

Result: -3.6a

3. -5b * 2.4c

Again, we multiply the constants (-5 and 2.4) by the variables (b and c):

Result: -12b * c or -12bc

5. -4/15x * 5/16 * (-y)

First, we simplify the fraction:

(-4/15) * (5/16) = -1/12

Now, we multiply the result by (-y):

Result: -1/12 * (-y) = 1/12 * y or y/12

Final results:

1. -1.2 * 3a = -3.6a
2. -5b * 2.4c = -12bc
3. -4/15x * 5/16 * (-y) = y/12