$5 \frac {1} {2} = \frac {2 * 5 + 1} {2} = \frac {11} {2}\\4 \frac {1} {4} = \frac {4 * 4 + 1} {4} = \frac {17} {4}\\6 \frac {3} {4} = \frac {4 * 6 + 3} {4} = \frac {27} {4}$

Rewriting the expression we have:

$- \frac {11} {2} - \frac {17} {4} -\frac {27} {4} =$

Remember that equal signs are added and the same sign is placed.

$- \frac {11} {2} - \frac {44} {4} =\\- \frac {11} {2} - \frac {22} {2} =\\- \frac {33} {2}$

Answer:

$- \frac {33} {2}\\-(15 \frac {3} {2})$

5 0

3 years ago

Evaluate 2r +1 if r=3

Evgesh-ka [11]

Answer:

Step-by-step explanation:

So, substitute in your 4 for r, 2(3) + 1. Multiply 2 and 3 to get 6 and then add a to get 7. I hope this helps :)

6 0

3 years ago

Roseanne is making chocolate chip cookies for dessert the recipe for one batch of chocolate chip cookies calls for 2 1/2 cups of

umka21 [38]

Answer:

8 3/4 cups of sugar

Step-by-step explanation:

1 batch of chocolate chip cookies ↔ 2 1/2 cups of sugar

3 1/2 batch of chocolate chip cookies ↔ 3 1/2 * 2 1/2 cups of sugar

3 1/2 * 2 1/2 = 7/2 * 5/2 = 35/4 = 8 3/4 = 8.75

4 0

3 years ago

What does simplifying the ratio of am to 250 mm to 50 cm give?​

What does simplifying the ratio of am to 250 mm to 50 cm give?