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zimovet [89]
3 years ago
9

Pls help :((((((((((((

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
8 0

Answer:

45

Step-by-step explanation:

dndjdjdbdhyejs ccx xhdidCruz s officials Wii is

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67 times a number minus 58 is equal to 36 less than the number
marusya05 [52]
67n - 58 = n - 36

hope this helps, have a great day!

6 0
3 years ago
A profit function is derived from the production cost and revenue function for a given item. The monthly profit function for a c
SpyIntel [72]
Check the picture below.

\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lccclll}
P(x) = &{{ -0.05}}x^2&{{ +500}}x&{{ -100000}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)\\\\
-------------------------------\\\\
\textit{so }-\cfrac{b}{2a}\textit{ units maximize the profit, and}\\\\\\
c-\cfrac{b^2}{4a}\textit{ dollars is the maximum profit}

5 0
3 years ago
4.) A bag contains 10 red marbles and 5 blue marbles. You randomly select 3 marbles from the bag. What is
sesenic [268]

Answer:

a) 1/27

b) 2/91

Step-by-step explanation:

A bag contains 10 red marbles and 5 blue marbles (15 marbles in total). You randomly select 3 marbles from the bag.

a) You replace each marble before selecting the next one.

The probability of selecting one blue marble is

\dfrac{5}{15}=\dfrac{1}{3},

then the probability that all 3 marbles are blue is

\dfrac{1}{3}\times \dfrac{1}{3}\times \dfrac{1}{3}=\dfrac{1}{27}

b) You do not replace each marble before selecting the next one. Each time the number of blue marbles decreases by 1 and the total number of marbles decreases by 1 too. So the probability that all 3 marbles are blue is

\dfrac{5}{15}\times \dfrac{4}{14}\times \dfrac{3}{13}=\dfrac{2}{91}

7 0
3 years ago
The length of a rectangle is increased by 25% , but the width of the rectangle is decreased by 25%. By what percent was the rect
Yuki888 [10]

The rectangle's area decreased by 19%.

Length = L

Breadth = B

Original area = L x B

New area = A = L x (1 + 25%) x B x (1 - 25%)

A = L x B x 0.25 x 0.75 = L x B x 1.05

Therefore the area of the rectangle has decreased by 19%.

To find the location of a rectangle, multiply its width by means of its height. If we understand the sides of the rectangle which are different lengths, then we have each the height and the width.

The perimeter P of a rectangle is given through the system, P=2l+2w, wherein l is the period and w is the width of the rectangle. The area A of a rectangle is given by means of the method, A=lw, in which l is the duration and w is the width.

Learn more about rectangle here brainly.com/question/25292087

#SPJ4

6 0
2 years ago
I WILL MAKE BRAINLIEST PLEASE HELP
Umnica [9.8K]

Solution here,

dimentions of is 20 in. by 10 in. by 12 in.

i.e. volume of tank=20×10×12=2400 cu. in.

Again,

the tank holds 10 gallons of water

i.e. 10 gallons of water occupies 2400 cu. in.

so, 1 gallon of water occupies 2400/10 cu.in.

=240 cu.in

5 0
3 years ago
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