If you factor the expression of part A, you will get the expression of part B

the reason is that the perimeter of a rectangle is equal to 2(l+w)

so in the factorization number 2 will be multiplied by the rest of the expression

good luck

5 0

3 years ago

Solve for p2. p1v1 = p2v2

lukranit [14]

Answer:

P₂ = $\frac{P_{1} V_{1} }{V_{2} }$

Step-by-step explanation:

Given expression:

Boyle's law:

P₁ V₁ = P₂ V₂

Problem is to find P₂;

Solution:

P₁ V₁ = P₂ V₂

To solve this problem, multiply both sides by $\frac{1}{V_{2} }$ ;

P₁ V₁ x $\frac{1}{V_{2} }$ ; = P₂ V₂ x $\frac{1}{V_{2} }$ ;

$\frac{1}{V_{2} }$ cancels out V₂ on the right hand side;

P₂ = $\frac{P_{1} V_{1} }{V_{2} }$

6 0

3 years ago

Fernando has been saving money to buy an e-book reader. A store has just marked down the price of its readers by 40%. Each reade

murzikaleks [220]

Answer:

Fernado saves $90.

Step-by-step explanation:

40% of $150 ( original price ) = $60

$150 - $60 ( original price - discounted price ) = $90 ( savings )

The question asks about the 40% markdown only, so I'd assume you wouldn't reduce it by $25.

But if you did Fernando would save $115 :

40% of $150 ( original price ) = $60

$60 - $25 ( mail-in rebate ) = $35

$150 - $35 ( original price - discounted price ) = $115 ( savings )

6 0

3 years ago