Answer:
D. 2 3 • 3 2 • 5
Step-by-step explanation:
ig I need at least 20 characters to submit my answer. :)
Answer:
Model A is 9
Model B is 5
Step-by-step explanation:
At Lisa's printing Company LLC there are two kinds of printing presses model.
Let x = the number of model A printing press.
Let y = the number of the model B printing press.
model A can print 70 bucks per day and model B can print 55 bucks per day.
The total number of both models prints 905 bucks per day.
This means
70x + 55y = 905 - - - - - - - - -1
The company owns 14 total printing presses. This means
x + y = 14 - - - - - - - - - -2
x = 14-y
Put x = 14-y in equation 1
70(14-y) + 55y = 905
980 -70y + 55y = 905
-15y = 905-980= -75
y = -75 / -15= 5
x = 14-y = 14-5
= 9
A percentage is a comparison to 100, so
250% = 250/100 = 25/10 = 5/2
5/2 = 2 1/2 or 2.5
Answer:
Step-by-step explanation:
a - 3b = 4 ---------------(eq1)
2a = 6b -9
or, 2a - 6b = -9 ------------(eq2)
2a - 6b = 8 --------(eq1) X 2
2a - 6b = -9 --------(eq2)
(-) (+) (+)
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the variable part of both the equations are same. so the equation has more than one solution.
Answer:
91 and - 108
Step-by-step explanation:
-108 x 91 = -9828
91 + (-108) = -17
