7 1/2 divided by 1/4

Mathematics

2 answers:

klasskru [66]3 years ago

8 0

Answer: 30

Step-by-step explanation:

AVprozaik [17]3 years ago

5 0

Answer:

Its 30

Step-by-step explanation:

multiply the 7 with its denominator, 2. Then add that result to the numerator, 1. You should get 15/2. Change the division sign to the multiplication sign. While you do that, flip 1/4 to 4/1. Multiply 15/2 and 4/1. Simplify the 4 and 2 which they can be to 2 and 1. Then there should be nothing below 15, just itself as a whole number and 2 it self with nothing below it either. Multiply 15 and 2 and there’s your answer!! 30!! Woohoo!!

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I need help with question because I not very good a math please help

Fittoniya [83]

Sorry I am not good at math either

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3 years ago

What is the slope of a line perpendicular to the line whose equation is 5x - y = -7.

BARSIC [14]

keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

$5x-y=-7\implies 5x-y+7=0 \\\\\\ \stackrel{\stackrel{m}{\downarrow }}{5} x+7=y\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}$

so a line perpendicular to that one above will have a slope of

$\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{5\implies \cfrac{5}{1}} ~\hfill \stackrel{reciprocal}{\cfrac{1}{5}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{1}{5}}}$