First, don't freak out! :). I'll help!
11) cost per day plus the cost per pastry times the # of pastries is less than or equal to 500.
p= # of pastries
119+2.25p<=500
subtract 119 from both sides
2.25p<=381
divide both sides by 2.25
p<=169.33
Answer: C) 119+2.25p<=500; p<169
12) Add the two numbers together.
-1.56 + 0.73= -0.83
Answer: D) -0.83 pounds
13) t= cost per ticket
$ spent at concession plus 5 tickets times the cost of the tickets (t) equals the total.
$29.25 + 5t= $55.50
subtract 29.25 from both sides
5t= 26.25
divide both sides by 5
t= $5.25 price of each ticket
Answer: C) 29.25 + 5t=55.50; t=$5.25
Hope this helps! Good luck! :)
The thing that best describes the values of x and y is option B; they will be real numbers greater than or equal to 0.
<h3>What is a Real Number?</h3>
The real number refers to the union of both rational and irrational numbers that can have negative or positive values.
From the given information:
Peaches are being bought and sold for $2 per pound.
There is no negative value used here if x represents the number of pounds of peaches bought and y represents the total cost of the peaches.
Thus, a conclusion that can be reached as to the values of x and y is that they contain real numbers greater than or equal to 0.
Read more about real numbers here:
brainly.com/question/155227
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Your answer will be A, 20 hours to take the crew to complete a building with 200 windows
Answer:
the variable term 5Y
Step-by-step explanation:
4x+5y=15
+
6x-5y=18
_________
10x=33 divide by 10
x=3.3
Here we're presented with a quadratic equation which needs to be expanded and then rewritten in descending powers of x:
1x^2 + m^2x^2 + 6mx + 9 - 3 = 0.
Let's group like terms: 1x^2 + m^2x^2 + 6mx + 6 = 0.
The first 2 terms can be rewritten as a single term: (1+m^2)x^2, and so we now have:
(1+m^2)x^2 + 6mx + 6 = 0.
We must now calculate the discriminant and set the resulting expression = to 0, as a preliminary to finding the value of m for which the given quadratic has equal roots:
discriminant: (6m)^2 - 4(1+m^2)(6) = 0
Then 36m^2 - 24(1+m^2) = 0, which simplifies to 12m^2 - 24 = 0.
Then 12 m^2 = 24; m^2 = 2, and m = √2.
When the discriminant is zero, as it is here when m = √2, then the given quadratic has two equal roots.