3 years ago

What is the surface area of the right cone below?

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

3 0

B) 72pie units squared

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PLEASE HELP ME!!! What is the volume of the rectangular prism?

goldenfox [79]

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28. The United States Postal Service delivers many packages every day. A postal carrier recorded the number of packages he deliv

Rudiy27

Answer:

(B) 23

Step-by-step explanation:

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The florist charges $31.75 for eight roses and five carnations. For one rose and three carnations, it cost $5.75. What is the co

Sedbober [7]

Cost for a carnation is $0.75

Step-by-step explanation:

Let,

Rose = x

Carnation = y

According to given statement;

8x+5y=31.75 Eqn 1

x+3y=5.75 Eqn 2

$Multiplying\ Eqn\ 2\ by\ 8\\8(x+3y=5.75)\\8x+24y=46 \ \ \ Eqn\ 3\\Subtracting\ Eqn\ 1\ from\ Eqn\ 3\\(8x+24y)-(8x+5y)=46-31.75\\8x+24y-8x-5y=14.25\\19y=14.25\\Dividing\ both\ sides\ by\ 19\\\frac{19y}{19}=\frac{14.25}{19}\\y=0.75$

Cost for a carnation is $0.75

Keywords: Linear equations, Addition

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

Combine Like Terms and Eliminate Parenthesis.<br>5z-[2z-(13z+8)]

katen-ka-za [31]

We need to start from the innermost parenthesis and work our way out.

The first parenthesis is $13z+8$ . These are not like terms because one involves a variable, while the other is a constant term. Two terms are summable if they involve the same power(s) of the same variable(s).