Answer:
I only know the first one...
C) 4896
Step-by-step explanation:
For the first pick, 18 students to pick from then 17 left and then 16 left.

18 * 17 * 16 = 4896

8 0

2 years ago

Genevieve wants to verify that One-fifth (5 x minus 20) minus one-half (4 x minus 8) is equivalent to Negative x. Which procedur

lora16 [44]

Answer:

The given expression is equivalent to -x

That is $\frac{1}{5}(5x-20)-\frac{1}{2}(4x-8)=-x$

Now Verified that the two expressions are equivalent

Step-by-step explanation:

Given that Genevieve wants to verify that One-fifth (5 x minus 20) minus one-half (4 x minus 8) is equivalent to Negative x

It can be written as below :

$\frac{1}{5}(5x-20)-\frac{1}{2}(4x-8)=-x$

Now we can verify the expression is equivalent or not :

Taking LHS

$\frac{1}{5}(5x-20)-\frac{1}{2}(4x-8)$

$=\frac{5x}{5}+\frac{-20}{5}-\frac{4x}{2}+\frac{8}{2}$ ( by using the distributive property )

$=x-4-2x+4$

$=-x+0$ ( adding the like terms )

$=-x$ =RHS

Therefore LHS=RHS

Therefore the given expression is equivalent to -x

That is $\frac{1}{5}(5x-20)-\frac{1}{2}(4x-8)=-x$

Now Verified that the two expressions are equivalent

6 0

3 years ago

Read 2 more answers

A gym's membership cost $280 in 2019. Now, it is $160. Which expression equals the percent of change?

kherson [118]

Answer:

1/2%

Step-by-step explanation:

4 0

3 years ago