Why is surface area measured in square units?

Mathematics

2 answers:

MA_775_DIABLO [31]2 years ago

8 0

Answer: I think it's because most things were made as square units.

Step-by-step explanation:

denis23 [38]2 years ago

7 0

When a three dimensional object is folded flat, its area is calculated, and then it is no longer has volume, only length and bredth. Volume has cubic units.

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If y varies directly as x, and y is 12 when x is 1.2, what is the constant of variation for this relation? A) 1 B) 10 C) 10.8 D)

Anit [1.1K]

$\bf \begin{array}{cccccclllll}&\\
\textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\&\\
\textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\&\\
y&=&{{ k}}&\cdot&x&\\
&\\
&& y={{ k }}x&\\
\end{array}& \\\\\\
\textit{we know that }
\begin{cases}
y=12\\
x=1.2
\end{cases}\implies y=kx\implies 12=k\cdot 1.2$

solve for "k" to find "k", or the "constant of variation"

6 0

3 years ago

Read 2 more answers

What is the first step that you have to do in order to solve the proportion: ? 8.5 26y = 3 y = 3(26) 3(y) = 1(26)

leva [86]

Answer:

$3(y)=1(26)$

Step-by-step explanation:

Please consider the complete question.

What is the first step that you have to do in order to solve the proportion: one-third equals the fraction y over 26?

We can represent our given information in an equation as:

$\frac{1}{3}=\frac{y}{26}$

To solve our given equation, we need to cross multiply our equation as:

$3(y)=1(26)$

Therefore, the 1st step to solve the equation would be $3(y)=1(26)$ .

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2 years ago

Larry's Lemons is a street vendor business that sells lemonade and lemon bars. A cup of lemonade sells for $2 and a lemon bar se

maxonik [38]

We can let x and y represent cups of lemonade and numbers of lemon bars, respectively. Then the constraints are ...

x ≥ 150
y ≥ 0
2x +1.5y ≥ 500
0.25x +0.20y ≤ 100

A graph is shown in the attachment, with the ordered pairs plotted. It is not feasible to sell half cups of lemonade or half lemon bars, so the second and third choices must be excluded. The point (160, 110) falls outside the feasible region, so is not a correct choice.

The correct choices are ...