If 60 equals twice a number added to itself, find the number.

1 answer:

7 0

Okay. 60 equals twice the number added to itself. That would be 30, because 60 is twice of 30 and 30 added to itself is 60. The number is 30.

You might be interested in

405 increased by 8.3

fredd [130]

Answer:

413.03

Step-by-step explanation:

405 increased by 8.3 is 405+8.3.

$405+8.3=\\405+8.0+0.3=\\413+0.3=\\413.03$

8 0

3 years ago

Read 2 more answers

Find the equation of the line perpendicular to the<br> given line through the point (1,9). y=1/3x+5

Ivan

Slope-intercept form: y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

For lines to be perpendicular, their slopes have to be the negative reciprocal of each other. (Basically flip the sign +/- and the fraction[switch the numerator and the denominator])

For example:

Slope = $\frac{1}{3}$

Perpendicular line's slope = $-\frac{3}{1}$ or -3

Slope = -2 or $-\frac{2}{1}$

Perpendicular line's slope = $\frac{1}{2}$

$y=\frac{1}{3} x+5$ The given line's slope is $\frac{1}{3}$ , so the perpendicular line's slope is -3. Now that you know the slope, substitute/plug it into the equation: