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icang [17]
3 years ago
10

Tina is fixing to get rectangular signs he wants to space metal trim around the side and just the rectangle measures 32 inches b

y 9 inches how much trim will Tina need
Mathematics
1 answer:
Goshia [24]3 years ago
3 0
You do 32+9=41 times 2 and you get 82 inches.
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If you saved 2.00 on january 1, 4.00 on february 1, 6.00 on march 1 and so on how much money would you save in a year
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The answer that I got:

$156


5 0
3 years ago
an electrition charged $70 for 2 hours of work and 115 for 5hours of work write an equtionto find the cost for y and xk
Westkost [7]

\bf \begin{array}{ccll} \stackrel{x}{hours}&\stackrel{y}{cost}\\ \cline{1-2} 2&70\\ 5&115 \end{array}~\hspace{10em}(\stackrel{x_1}{2}~,~\stackrel{y_1}{70})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{115}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{115-70}{5-2}\implies \cfrac{45}{3}\implies 15


\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-70=15(x-2)\implies y-70=15x-30 \\\\\\ y=15x+40\impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}


as you already know, a direct proportional variation has a constant of variation "k", y = kx, which in this case that'd be the slope, namely 15.

7 0
3 years ago
The area of a circle is 39.62cm2.<br> Find the length of the radius rounded to 2 DP.
Shkiper50 [21]

Using the formula for area of a circle:

Area = pi x radius^2

Replace area with the given value:

39.62 = pi x radius^2

Divide both sides by pi

Radius^2 = 39.62/pi

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Solve for radius by taking the square root of both sides

Radius = sqrt(12.62)

Radius = 3.55 cm

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If Sarah is 24 years younger than her mother and if the sum of their ages is 68, how old is Sarah?
irina [24]
Use subtraction the answer is 44
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What is $184.94 if the shipping 5%
pychu [463]
The anwser is $924.70
4 0
3 years ago
Read 2 more answers
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