P= a+b+2c solve for c

Answers

Answer 1

Answer:       P = a + b + 2c
      P - a - b = a - a + b - b + 2c
      P - a - b = 2c
   2    2
¹/₂P - ¹/₂a - ¹/₂b = c

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Suppose gil can write a poem in 1 hour, holly can write a poem in 2 hours, and ivan can write a poem in 3 hours. Each person spends 12 hours per day writing poems and requires a wage of $10 per hour to do so. How much more would it cost a literary magazine to commission 19 poems per day than 18 poems per day?

Answers

A poem wage for Gil = number of hours* wage per hour

= 1*10 = 10$

A poem wage for Holly = number of hours*wage per hour

= 2*10 = 20$

A poem wage for Ivan = number of hours * wage per hour

= 3*10 = 30$

And all 3 of them works for 12 hours per day.

Since Gil charges least for a poem, it is always betterr to take Gil for first 12 poems.

Let us find wage for 18 poems = (wage for 12 poems from Gil) + (wage for 6 poems from Holly) = 12*10 + 6*20 = 240$

Since both Gil and Holly worked for 12 hours to complete 18 poems.

Remaining 1 poem should be written by Ivan.

And that will cost 30$.

Hence It will cost 30$ more to commission 19 poems per day than 18 poems per day.

What is y =2x 5 in standard form?

Answers

To write a linear equation in standard form, move each variable term to the left side of the equation and simplify.Ax+By=CA⁢x+B⁢y=CMove 2x2⁢xto the left side of the equation because it contains a variable.y−2x=5y-2⁢x=5Amust be positive, so multiply both sides of the equation by −1−1⋅(y−2x)=−1⋅5-1⋅y-2⁢x=-1⋅5Simplify the left side of the equation.Multiply −1-1by y−2xy-2⁢xto get −1(y−2x)-1⁢y-2⁢x.−1(y−2x)=−1⋅5-1⁢y-2⁢x=-1⋅5Apply the distributive property.−1y−1(−2x)=−1⋅5-1⁢y-1⁢-2⁢x=-1⋅5Simplify.Rewrite −1y-1⁢yas −y-⁢y.−y−1(−2x)=−1⋅5-⁢y-1⁢-2⁢x=-1⋅5Multiply −2-2by −1-1to get 22.−y+2x=−1⋅5-⁢y+2⁢x=-1⋅5Reorder −y-⁢yand 2x2⁢x.2x−y=−1⋅52⁢x-⁢y=-1⋅52x−y=−1⋅52⁢x-⁢y=-1⋅52x−y=−1⋅52⁢x-⁢y=-1⋅5Multiply −1-1by 55to get −5-5.2x−y=−52⁢x-⁢y=-5

What is the solution of the equation
7x + 3 = 2x + 13

Answers

Answer:

Step-by-step explanation:

7x + 3 = 2x + 13

5x + 3 = 13

5x = 10

x = 2

Answer:

x = 2

Step-by-step explanation:

given

7x + 3 = 2x + 13 ( subtract 2x from both sides )

7x - 2x + 3 = 2x - 2x + 13 ( simplify both sides )

5x + 3 = 13 ( subtract 3 from both sides )

5x + 3 - 3 = 13 - 3 ( simplify both sides )

5x = 10 ( divide both sides by 5 )

$(5)/(5)$ x = $(10)/(5)$ , that is

x = 2

|2n+5|>/9 solve for n?

Answers

$|2n+5|\geq9\iff2n+5\geq9\ or\ 2n+5\leq-9\ \ \ |subtract\ 5\ from\ both\ sides\n\n2n\geq4\ or\ 2n\leq-14\ \ \ \ \ |divide\ both\ sides\ by\ 2\n\n\boxed{n\geq2\ or\ n\leq-7}\n\nAnswer:\boxed{\boxed{n\in(-\infty;-7]\ \cup\ [2;\ \infty)}}$

$|2n+5|\geq9\n2n+5\geq 9 \vee 2n+5\leq-9\n2n\geq4 \vee 2n\leq-14\nn\geq2 \vee n\leq-7\nn\in(-\infty,-7\rangle\cup\langle2,\infty)$

A regular number cube is rolled. what is the probability that a 3 will not be rolled? 1. 1/6 2. 1/2 3. 4/5 4. 5/6

Answers

5/6 because there is 6 numbers on a die and if you roll a dice there is a chance you can get 5 other numbers than 3

Answer:

5/6 is the answer

Step-by-step explanation:

Because I did the test and got it right

The area of a rectangular room is 750 square feet. The width of the room is 5 feet less than the length of the room.

Answers

Answer: Length of room = 30 feet

Width of room = 30-5 = 25 feet

Step-by-step explanation:

Let the length of room be l

Let the breadth of room be l-5

Area of rectangular room = 750 sq. feet

As we know the formula for "Area of rectangle ":

$Area=Length* breadth\n\n750=l(l-5)\n\n750=l^2-5l\n\nl^2-5l-750=0\n\n\text{By split the middle term}\n\nl^2-30l+25l-750=0\n\nl(l-30)+25(l-30)=0\n\n(l-30)(l+25)=0\n\nl=30,-25\n\n\text{Negative get discarded}\n\nLength=30\ feet$

So, Length of room = 30 feet

Width of room = 30-5= 25 feet

The area is length times width. Therefore, your length is 30 and the width is 25. The width (25) is 5 less than the length (30). 30 times 25 is 750.

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