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4 years ago

How do you solve 1\5 b = 2

Mathematics

2 answers:

Georgia [21]4 years ago

7 0

Answer:

b = 10

Step-by-step explanation:

You can solve for b by dividing both sides by 1/5 because it will remove the 1/5 from the left side of the equation, but what you do to one side you must do to the other side as well.

(1/5b)/ (1/5) = 2/ (1/5)

b = 10

deff fn [24]4 years ago

5 0

Answer:

B=10

Step-by-step explanation:

1/5B=2

Step 1 = Multiply each side by 5 ( 1/5 * 5/1 = 5/5 = 1 )

1/5B x 5 = 2 x 5

B= 10

Step 1 = Rewrite the equation

0.2B=2

Step 2 = Divide each side by .2

0.2B/0.2=2/0.2

B=10

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3 years ago

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$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:Angle \:\: of \:\: elevation= 30°$

____________________________________

$\large \tt Solution \: :$

Let the angle of elevation be " x "

$\qquad \tt \rightarrow \: \cos(x) = \dfrac{9 \sqrt{3} }{18}$

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2 years ago

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3 years ago

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4 years ago

What much expression represents a rational number?

Pie

Answer:

$\displaystyle \frac{2}{7}+\sqrt{121}$

Step-by-step explanation:

<u>Rational Numbers</u>

A rational number is any number that can be expressed as a fraction

$\displaystyle \frac{a}{b}, \ b\neq 0$

for a and b any integer and b different from 0.

As a consequence, any number that cannot be expressed as a fraction or rational number is defined as an Irrational number.

Let's analyze each one of the given options

$\displaystyle \frac{5}{9}+\sqrt{18}$

The first part of the number is indeed a rational number, but the second part is a square root whose result cannot be expressed as a rational, thus the number is not rational

$\pi + \sqrt{16}$

The second part is an exact square root (resulting 4) but the first part is a known irrational number called pi. It's not possible to express pi as a fraction, thus the number is irrational

$\displaystyle \frac{2}{7}+\sqrt{121}$

The square root of 121 is 11. It makes the whole number a sum of a rational number plus an integer, thus the given number is rational

$\displaystyle \frac{3}{10}+\sqrt{11}$

As with the first number, the square root is not exact. The sum of a rational number plus an irrational number gives an irrational number.

Correct option:

$\boxed{\displaystyle \frac{2}{7}+\sqrt{121}}$

6 0

3 years ago

How do you solve 1\5 b = 2​

How do you solve 1\5 b = 2