David earns $9.60 per hour for a 40-hour week. What was his net pay for a week in which his total deductions were $84.30?

Answer:

2/405

Step-by-step explanation:

Simplify the following:

(-2)/9×((-1)/3×1/3)/5

(-1)/3×1/3 = (-1)/(3×3):

(-2)/9×((-1)/(3×3))/5

(-1)/(3×3)×1/5 = (-1)/(3×3×5):

(-2)/9×(-1)/(3×3×5)

(-2)/9×(-1)/(3×3×5) = (-2 (-1))/(3×3×5×9):

(-2 (-1))/(3×3×5×9)

3×3 = 9:

(-2 (-1))/(9×5×9)

9×5 = 45:

(-2 (-1))/(45×9)

45×9 = 405:

(-2 (-1))/405

-2 (-1) = 2:

Answer:  2/405

Answer:

D

Step-by-step explanation:

We need the formula for arc length (in radians) to solve this problem. The formula is:

Where

s is the arc length

r is the radius of the circle

is the intercepted angle

In this diagram, we can see that    is beign intercepted by the big arc with measure 20 cm. So arc length, s, is 20

Also, if we look, we see that the radius is 5 cm, so r = 5

Now, we substitute into formula and find :

This is given in radians, so is 4 radians

D is the correct answer choice.

Answer:  The correct option is (D)

Step-by-step explanation:  Given that of Melissa's friends babysit for extra money and of her friends babysit and pet sit.

We are to find the fraction of her friends those who babysits also pet sits.

Total fraction of Melissa's friends is given by

Therefore, the fraction of her friends those who babysits also pet sits is given by

Thus, the required fraction is

Option (D) is CORRECT.

Do 3/4 of 2/3

Turn the demoninator into 12 so:

9/12 8/12 so I’m guessing C

Answer:

1. C. 3 : 5
2. D. 24 : 40

Step-by-step explanation:

For C:

1. 6 ÷ 2 = 3
2. 10 ÷ 2 = 5
3. Put them together: 3 : 5

For D:

1. 6 × 4 = 24
2. 10 × 4 = 40
3. Put them together: 24 : 40

I hope this helps!