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Sunny_sXe [5.5K]
4 years ago
10

Please help:

Mathematics
2 answers:
gogolik [260]4 years ago
8 0
Ok answer is the fourth one hope i helped pls mark brainlyist
Daniel [21]4 years ago
8 0
I need this answer for plato
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3 years ago
Will mark brainliest plz help
PtichkaEL [24]

Answer:

A. 5b > 650 + 2.25b; B. 237 brownies

Step-by-step explanation:

A. Set up the inequality

Let b = the number of brownies. Then

Cost = 650 + 2.25b

Sales = 5b

Profit = Sales - Cost

To make a profit, we must have

Sales - Cost > 0 or

5b > 650 + 2.25b

2. Solve the inequality

\begin{array}{rcl}5b & > & 650 + 2.25b\\2.75b & > & 650\\b & > & \dfrac{650}{2.75}\\\\& > & 236.4\\\end{array}\\\text{Albert can't sell a fraction of a brownie, so b $>$ 237}\\\text{Albert must sell at least $\large \boxed{\textbf{237 brownies}}$ to make a profit.}

3. Check

\begin{array}{rcl}5 \times 237 & > & 650 + 2.25 \times 237\\1185 & > & 650 + 533.25\\1185 & > & 1183.25\\\end{array}

OK.

5 0
4 years ago
A cone with a radius of 12 cm and a height of 12 cm has the same volume as a cylinder with a radius of 8 cm. What is the height
Dmitry [639]
First, substitute the given radius and given height of the cone into the formula for the volume of a cone. 

Volume of a cone:  (1/3) pi r^2 h
In this case, the cone volume is (1/3) pi (12 cm)^2 (12 cm) = 576 cm^3

Vol. of a rt. cylinder:  pi r^2 h
In this case, the vol. of the rt. cyl. is pi (8 cm)^2 h.

The two different shapes have the same volume.  Therefore, set the two formulas (above) equal to each other:

576 pi cm^3 = pi (8cm)^2 h.  This becomes

576 pi cm^3 = pi (64 cm^2) h.  "pi" cancels out, leaving us with

576 cm^3
------------- = h.       This is the height of the cylinder, in cm.
 64 cm^2



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4 years ago
Will mark brainly<br> Angles Test
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Answer:

B.

Step-by-step explanation:

complantary angles add up to 90 degrees so 90-24 is 66

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