114 ÷ 19 <img src="https://tex.z-dn.net/?f=114%20%5Cdiv%2019%20%3D" id="TexFormula1" title="114 \div 19 =" alt="114 \div 19 =

alexandr1967 [171]

The expression you want to simplify is 0-(x-y).
0-(x-y)
=-(x-y)
=-x+y

You just have to treat the negative sign in front of (x-y) as a -1 and distribute it to both x and -y.

6 0

3 years ago

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Jamie answered 68 out of 80 questions. What percentage represents the point number of questions she answered?

SIZIF [17.4K]

85% if the questions. You would take 68 and divide it by 80 to find the percentage of answered questions.

3 0

3 years ago

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If a rectangle has side lengths 5x-y and x+4y what would be the area and perimeter of the rectangle?

Dafna1 [17]

Answer:

Answer is given below with explanations. 

Step-by-step explanation:

$given \: \: l = 5x - y \: and \: \: b = x + 4y \\ area \: of \: rectangle \:= l \times b \: sq.units \\ = (5x - y)(x + 4y) \\ = 5 {x}^{2} + 20xy - xy - 4 {y}^{2} \\ = 5 {x}^{2} + 19xy - 4 {y}^{2} \\ perimeter \: of \: rectangle \\ = 2(l + b) \\ = 2(5x - y + x + 4y) \\ = 2(6x + 3y) \\ = 12x + 6y$