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Bas_tet [7]
3 years ago
11

The owner of a small store buys coats for 55.00 each He sells the coats for 66.00 each

Mathematics
1 answer:
liubo4ka [24]3 years ago
7 0

he must buy 24 jackets to get atheist 260 dollars

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A ​30-inch board is to be cut into three pieces so that the second piece is 4 times as long as the first piece and the third pie
Arte-miy333 [17]

Answer:

Step-by-step explanation:

Length of:

First piece = x

Second piece = 4x

Third piece = 5x

Equation: 30 = 4x + 5x + x

Solving the Equation:

10x = 30  

x = 3

Lengths of:

First piece = 3 inches

Second piece = 12 inches

Third piece = 15 inches

6 0
2 years ago
Solve this equation.
baherus [9]

Answer:

y=2

Step-by-step explanation:

(y+7)÷3=3y-3

y+7=9y-9

7+9=9y-y

16=8y

2=y

7 0
3 years ago
Read 2 more answers
Which of the following represents the function f(x) = x2 − 14x − 1 in vertex form? Identify the vertex.
RUDIKE [14]
The vertex is (7,-50) 
***rewrite in standard form***
8 0
3 years ago
Use the arc length formula to find the length of the curve y = 4x − 5, −1 ≤ x ≤ 2. check your answer by noting that the curve is
professor190 [17]
Ok, here we go.  Pay attention.  The formula for the arc length is AL= \int\limits^b_a { \sqrt{1+( \frac{dy}{dx})^2 } } \, dx.  That means that to use that formula we have to find the derivative of the function and square it.  Our function is y = 4x-5, so y'=4.  Our formula now, filled in accordingly, is AL= \int\limits^2_1 { \sqrt{1+4^2} } \, dx (that 1 is supposed to be negative; not sure if it is til I post the final answer).  After the simplification we have the integral from -1 to 2 of \sqrt{17}.  Integrating that we have AL= \sqrt{17}x from -1 to 2.  2 \sqrt{17}-(-1 \sqrt{17} ) gives us 3 \sqrt{17}.  Now we need to do the distance formula with this.  But we need 2 coordinates for that.  Our bounds are x=-1 and x=2.  We will fill those x values in to the function and solve for y.  When x = -1, y=4(-1)-5 and y = -9.  So the point is (-1, -9).  Doing the same with x = 2, y=4(2)-5 and y = 3.  So the point is (2, 3).  Use those in the distance formula accordingly: d= \sqrt{(2-(-1))^2+(3-(-9))^2} which simplifies to d= \sqrt{9+144}= \sqrt{153}.  The square root of 153 can be simplified into the square root of 9*17.  Pulling out the perfect square of 9 as a 3 leaves us with 3 \sqrt{17}.  And there you go!
5 0
3 years ago
Dominic makes and sells salsa. The function C = 2n + 200 represents his costs, in dollars, for producing n jars of salsa. His re
Elan Coil [88]

Answer:the function representing profit, P = 3n + 200

Step-by-step explanation:

The function C = 2n + 200 represents his costs, in dollars, for producing n jars of salsa.

The revenue, or the amount he receives for selling n jars, can be represented by the function R = 5n.

Profit = revenue - cost or expenses.

Therefore,

The function representing Dominic's profit, P, for selling n jars of salsa will be

P = 5n - 2n + 200 = 3n + 200

8 0
3 years ago
Read 2 more answers
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