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3 years ago

84 is 60% of what number?

Mathematics

2 answers:

Ahat [919]3 years ago

6 0

x * .60 = 84

x = 84 / .60

x = 140

Fudgin [204]3 years ago

5 0

To convert a percent to a decimal, you divide by 100.

60% = 0.60

If x is the unknown number, the word is means equal

84 = 0.60 * x

Divide both sides by 0.60

84/0.60 = (0.60/0.60)* x = x

140 = x

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Christian reads 1/4 of a book every 2/3 weeks how many books does Christain read per week

vredina [299]

Answer:

3/8 of a book per week

Step-by-step explanation:

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2 years ago

Write an equation of a line that contains the points P(5,0) and Q(7,-3)

yanalaym [24]

Answer:

y=-3/2x+7.5

Step-by-step explanation:

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3 years ago

The linear equation y = mx + b contains the point (4, -2) and is perpendicular to the

xenn [34]

A linear equation is represented as: $y = mx + b$ .

The equation of the line is: $y =3x - 14$

First, we calculate the slope (m) of $6x + 18y = 11$

Make y the subject

$18y = -6x + 11$

Divide by 18

$y = -\frac{1}{3}x + \frac{11}{18}$

In $y = mx + b$

$m \to$ slope

So, the slope of $y = -\frac{1}{3}x + \frac{11}{18}$ is:

$m = -\frac 13$

Since, the line is perpendicular to $6x + 18y = 11$

The slope of the line is:

$m_1 = -\frac{1}{m}$

So, we have:

$m_1 = -\frac{1}{-1/3}$

$m_1 = 3$

The line passes through (4,-2).

So, the equation is:

$y =m(x - x_1) + y_1$

This gives:

$y =3(x - 4) -2$

$y =3x - 12 -2$

$y =3x - 14$

Hence, the linear equation is:

$y =3x - 14$