The answer is 75.
Hope this helps!
75
15×6÷2+10×6÷2
90÷2+60÷2
45+30
75
Answer: If the cafeteria sold 80 dollars worth of cookies at 2 for a $1 that would be 40 cookies. If they sold all of the cookies at 50 cents each that equals out to $125.
Step-by-step explanation:
In your answer, please explain and show your work to the best of your ability. I want to know how you got your answer. It will help me a lot! :)
Note: These questions are from 7-3 Practice: Rational Exponents from Glencoe Algebra 1.
Good luck! :)
To find the distance fallen, substitute the given velocity into the equation and solve for h. To find the power being used, substitute the given current and resistance into the equation and solve for P.
1. To find the distance that an object has fallen if its velocity is 96 feet per second, we need to use the given equation v = 8h^(1/2). We'll substitute 96 for v in the equation and solve for h:
96 = 8h^(1/2)
To isolate h, we'll divide both sides of the equation by 8:
12 = h^(1/2)
To get rid of the exponent, we'll square both sides of the equation:
144 = h
Therefore, the object has fallen a distance of 144 feet.
2. The equation IR^(1/2) = √P represents the relationship between current (I), power (P), and resistance (R). We're given that I = 2.5 amps and R = 16 ohms. We'll substitute these values into the equation and solve for P:
(2.5)(16)^(1/2) = √P
(2.5)(4) = √P
10 = √P
To isolate P, we'll square both sides of the equation:
100 = P
Therefore, the appliance is using 100 watts of power.
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y=1/3+x
y=1/3x
y=3+x
y=3x