Jared is buying pizza for a class party. If each pizza costs $12.75, including

Mathematics

2 answers:

yanalaym [24]3 years ago

6 0

Answer:

Step-by-step explanation:

denpristay [2]3 years ago

5 0

He will need $80 (D)

12.75 x 23 = 293.25

293.25 divided by 4 = $73.30

You might be interested in

0.008 is 1 tenth of what decimal

shepuryov [24]

0.08, Hope it helped

3 0

3 years ago

How do you find a vector that is orthogonal to 5i + 12j ?

Rashid [163]

$\bf \textit{perpendicular, negative-reciprocal slope for slope}\quad \cfrac{a}{b}\\\\
slope=\cfrac{a}{{{ b}}}\qquad negative\implies -\cfrac{a}{{{ b}}}\qquad reciprocal\implies - \cfrac{{{ b}}}{a}\\\\
-------------------------------\\\\$

$\bf \boxed{5i+12j}\implies 
\begin{array}{rllll}
\ \textless \ 5&,&12\ \textgreater \ \\
x&&y
\end{array}\quad slope=\cfrac{y}{x}\implies \cfrac{12}{5}
\\\\\\
slope=\cfrac{12}{{{ 5}}}\qquad negative\implies -\cfrac{12}{{{ 5}}}\qquad reciprocal\implies - \cfrac{{{ 5}}}{12}
\\\\\\
\ \textless \ 12, -5\ \textgreater \ \ or\ \ \textless \ -12,5\ \textgreater \ \implies \boxed{12i-5j\ or\ -12i+5j}$

if we were to place <5, 12> in standard position, so it'd be originating from 0,0, then the rise is 12 and the run is 5.

so any other vector that has a negative reciprocal slope to it, will then be perpendicular or "orthogonal" to it.

so... for example a parallel to <-12, 5> is say hmmm < -144, 60>, if you simplify that fraction, you'd end up with <-12, 5>, since all we did was multiply both coordinates by 12.

or using a unit vector for those above, then

$\bf \textit{unit vector}\qquad \cfrac{\ \textless \ a,b\ \textgreater \ }{||\ \textless \ a,b\ \textgreater \ ||}\implies \cfrac{\ \textless \ a,b\ \textgreater \ }{\sqrt{a^2+b^2}}\implies \cfrac{a}{\sqrt{a^2+b^2}},\cfrac{b}{\sqrt{a^2+b^2}}
\\\\\\
\cfrac{12,-5}{\sqrt{12^2+5^2}}\implies \cfrac{12,-5}{13}\implies \boxed{\cfrac{12}{13}\ ,\ \cfrac{-5}{13}}
\\\\\\
\cfrac{-12,5}{\sqrt{12^2+5^2}}\implies \cfrac{-12,5}{13}\implies \boxed{\cfrac{-12}{13}\ ,\ \cfrac{5}{13}}$

4 0

4 years ago

Solve the inequality

stepladder [879]

Answer:

(2.5+3)

Step-by-step explanation:

im not 100% sure though sorry

3 0

3 years ago

What will an investment of 6000 Euro at 7% p.a compound interest amount to after 5 years if the interest is compounded:

Over [174]

S = P[1 + (r / m)]^(m * t)

S = ?

P = 6000 euro

r = 0.07

m = 12

t = 5

S = 6000[1 + (0.07 / 12)]^(12 * 5)

S = 6000(1.00583)^(60)

S = 6000(1.4176...)

<span>S = 8505.75 euro

---------------------------

You can now do the rest which is anually and quarterly.</span>

5 0

3 years ago

How do you find the side length of a triangle?

-Dominant- [34]

If the triangle was a right triangle, then you can use the Pythagorean theorem to find the lengths.

5 0

3 years ago

Read 2 more answers