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2 years ago

If the total surface area of lidless cubical box is 90 cm square find the length of edge of the box

Mathematics

1 answer:

nikdorinn [45]2 years ago

4 0

Answer:

√18

Step-by-step explanation:

Ok, there's 5 squares that make up the box since the top's missing, so do:

90/5 --> 18

Since squares are simply length^2 to get the area, square root this value to give you your answer for each side length of this box:

√18

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2 years ago

Read 2 more answers

18 2/5 - n = -10 1/3

Wewaii [24]

Answer:

The answer is $n=28\frac{11}{15}$ .

Step-by-step explanation:

Given:

18 2/5 - n = -10 1/3.

Now, to solve the equation:

$18\frac{2}{5} - n = -10 \frac{1}{3}$

Converting the mixed fractions to improper:

⇒ $\frac{92}{5} -n=-\frac{31}{3}$

Moving the numbers on one side and variable to the other:

⇒ $\frac{92}{5} +\frac{31}{3}=n$

Now, solving the factions:

⇒ $\frac{92\times 3+31\times 5}{15}=n$

⇒ $\frac{276+155}{15}=n$

⇒ $\frac{431}{15}=n$

⇒ $28\frac{11}{15}=n$

Therefore, the answer is $n=28\frac{11}{15}$ .

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3 years ago

Which value of x makes the equation<br> -5x = -35 true?

WITCHER [35]

X=7 cause -5(7) = -35

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2 years ago

If the total surface area of lidless cubical box is 90 cm square find the length of edge of the box​

If the total surface area of lidless cubical box is 90 cm square find the length of edge of the box