At Elisa's printing company llc there are two kinds of printing presses: model a which can print 70 books per day and model b which witch can print 55 books per day. Company owns 14 total Printing Presse sand this allows 905 books per day. How many of each type of press do they have..
Answers
b (55 books/day) B =number of B , A=number of a then
A+B =14 ........ A=14-B
aA+bB =905
70(14-B) +55B =905
980-70B+55B=905
-15B=-75
B=-75/-15 =5
A=14-B=14-5=9
Elisa's Printing Company has 9 Model A printing pressesand 5 Model B printing presses.
Given that Elisha's printing company have two kinds of printing presses,
Model A = 70 books per day
Model B = 55 books per day
In total they have printing presses, which allows 905 books per day.
We need to find number of each of press,
Let's assume Elisa's Printing Company has x Model A printing presses and y Model B printing presses.
According to the given information, the total number of Model A printing presses (x) can print 70x books per day, and the total number of Model B printing presses (y) can print 55y books per day. Since the company owns 14 total printing presses, we can create the following equation:
x + y = 14 (Equation 1)
The total number of books printed per day is given as 905. So, we can set up another equation based on the printing capacities of each model:
70x + 55y = 905 (Equation 2)
Now, we can solve these equations simultaneously to find the values of x and y.
Multiplying Equation 1 by 70, we get:
70x + 70y = 980 (Equation 3)
Subtracting Equation 2 from Equation 3:
(70x + 70y) - (70x + 55y) = 980 - 905
Simplifying:
15y = 75
Dividing both sides by 15:
y = 5
Substituting the value of y in Equation 1:
x + 5 = 14
x = 14 - 5
x = 9
Therefore, Elisa's Printing Company has 9 Model A printing pressesand 5 Model B printing presses.
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Answer:
Mean=20.5
standard deviation=13.28
Step-by-step explanation:
We are given six samples i.e.
36, 14, 21, 39, 11, and 2
Mean is the average of all the samples
Mean= sum of all samples/no. of samples
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Standard deviation is the positive square root of variance where
variance= sum of square of samples/number of samples-(mean)²
variance=(36²+14²+21²+39²+11²+2²)/6-(20.5)²
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Answers
Answer:
The volume of sphere is:
65.4167 yd^3
Step-by-step explanation:
We are given surface area of sphere as:
We know that the surface area of sphere of radius ''r'' is given by the formula:
i.e. we have:
As we know that the radius of a circle can't be negative.
Hence,
Now the volume of sphere is given by:
Volume of sphere is:
65.4167 yd^3
Answers
-Use Distributive Property-
2y+3=3y+3(7)
2y+3=3y+21
-Minus 2y on both sides-
3=3y+21-2y
3=y+21
-Minus 21 on both sides-
y=3-21
y=-18
Answers
2
−6−
56
=−3−
14
=−6.742
5/(2) = 2.5 or 5/2
b. 5tan(25°)
c. 5/sin(25°)
d. sin(25°)/5
Answers
Answer:
b. 5tan(25°)
Step-by-step explanation:
The tangent function gives the ratio between the side opposite and the side adjacent to the angle. That is ...
tan(25°) = ?/5
Multiplying by 5 solves the equation:
? = 5·tan(25°)
Answer:
B
Step-by-step explanation:
I did it one usatestprep
Answers
Rate of change = (Change in y) / (Change in x)
In this case, both ordered pairs have the same y-coordinate (9), so the change in y is 0. The change in x is the difference between the x-coordinates, which is:
Change in x = (-1) - 4 = -5
Now, you can calculate the rate of change:
Rate of change = (0) / (-5) = 0
So, the rate of change between these two ordered pairs is 0. This means that the y-coordinate (9) remains the same, and there is no change in the dependent variable as the independent variable (x) changes from 4 to -1.