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vodka [1.7K]
3 years ago
15

St. Patrick's Day Problem Solving

Mathematics
2 answers:
yaroslaw [1]3 years ago
4 0

Answer:

I dont know wow this is hard i think it is 151 but im not sure

Step-by-step explanation:

anyanavicka [17]3 years ago
4 0
39, 57, 51? That seems right none are multiple of 2 or 9, between 30 and 60, and are multiples of 3?
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The markup is 80% and the selling price is $122.40 so what’s the cost to the store
zhuklara [117]
$220.30 will be ur final answer
6 0
3 years ago
There were 27,000 people at a ball game in Los Angeles. The day's receipts were $204,000. How many people paid $13 for reserved
Studentka2010 [4]
21000 people paid for general admission and 6000 paid for reserved seats. This is solved by making 2 equations. Out of 27000 people who were at game, x of them paid for general admission and y for reserved seats, thus
x + y = 27000
As said, daily receipts were 204000$. As reserved seat is 13$, y of them gave 13$ each (y*13$) and x of them gave 6 for general admission(x*6) and those two add up and we get second equation
13y + 6x = 204000.
This can be solved by transforming first equation into x = 27000 - y and then replacing the x in second.
13y + 6*(27000 - y) = 204000
13y + 162000 - 6y = 204000
7y = 42000
y = 6000
x + 6000 = 27000
x = 27000 - 6000 = 21000
5 0
3 years ago
11w+5w-1=65w-36<br> Ayuden poniendo tambien el procedimiento plis
nevsk [136]

Answer:

w=1.4

Step-by-step explanation:

11w+5w-1=65w-36

16w-1=65w-36

16w-65w= -36+1

-49w= -35

w= -35/-49

w= 1.4

4 0
3 years ago
Sin (3x+15) = Cos (7x-2)<br><br> Find value of x
11Alexandr11 [23.1K]
\bf \textit{Cofunction Identities}&#10;\\ \quad \\&#10;\boxed{sin\left(\frac{\pi}{2}-{{ \theta}}\right)=cos({{ \theta}})}\qquad &#10;cos\left(\frac{\pi}{2}-{{ \theta}}\right)=sin({{ \theta}})&#10;\\ \quad \\ \quad \\&#10;tan\left(\frac{\pi}{2}-{{ \theta}}\right)=cot({{ \theta}})\qquad &#10;cot\left(\frac{\pi}{2}-{{ \theta}}\right)=tan({{ \theta}})&#10;\\ \quad \\ \quad \\&#10;sec\left(\frac{\pi}{2}-{{ \theta}}\right)=csc({{ \theta}})\qquad &#10;csc\left(\frac{\pi}{2}-{{ \theta}}\right)=sec({{ \theta}})\\\\&#10;-------------------------------\\\\

\bf \begin{array}{lcllclll}&#10;sin(&90^o-\theta)&=&cos(&\theta)\\&#10;&\uparrow &&&\uparrow \\&#10;&3x+15&&&7x-2\\&#10;&\downarrow \\&#10;&90-(7x-2)&#10;\end{array}&#10;\\\\\\&#10;90-(7x-2)=3x+15\implies 90-7x+2=3x+15&#10;\\\\\\&#10;92-15=10x\implies 77=10x\implies \cfrac{77}{10}=x
5 0
3 years ago
The amount of money Mr. Brust made this summer was equal to the $55 he started with and the $15 for every lawn he mowed while st
earnstyle [38]

Let's start by declaring our varibles.

x = number of lawns Mr. Brust mowed

y = total amount of money Mr. Brust made

Let's create our equation.

y = 15x + 55

For part b, we can plug 800 in for y.

800 = 15x + 55

Subtract 55 from both sides.

745 = 15x

Divide both sides by 15

50 = x. Note, I rounded the answer to the nearest integer.

For part c, we can plug 13 in for x.

y = 15(13) + 55

Simplify the right side of the equation.

y = 250

8 0
3 years ago
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