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3 years ago

Whst is the answer to 1 3/4 - 7/10 = ?

Mathematics

2 answers:

alukav5142 [94]3 years ago

5 0

Turn 1 3/4 into a decimal which equal 1.75. Because 10/10 = 1.00
Same thing with 7/10 = 0.70

Take 1.75 - 0.70 = 1.05

Verdich [7]3 years ago

5 0

Change them into improper fraction with a common denominator is easier
So you should get 70/40-28/40
The answer is 42/40 or simplified is 1 1/20

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Equation of a line that is perpendicular to the line $y=1/9x+4$ and contains the point (-9,0). is $y=-9x-81$

Step-by-step explanation:

We need to find the equation of a line that is perpendicular to the line $y=1/9x+4$ and contains the point (-9,0).

Finding slope

Since the lines are parallel, the slopes will be -1/slope 1

The equation given is in slope-intercept form: $y=mx+b$ where m is slope.

Comparing with given equation $y=1/9x+4$ the slope = 1/9

So, slope of required line is: -9

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To find y-intercept we use point (-9,0) and slope -9

Putting values:

$y=mx+b\\0=-9(-9)+b\\0=81+b\\b=-81$

So, y-intercept of required line is -81

Finding equation of required line:

Slope m = -9, y-intercept b = -81

Putting values

$y=mx+b\\y=-9x-81$

So, equation of a line that is perpendicular to the line $y=1/9x+4$ and contains the point (-9,0). is $y=-9x-81$

Keywords: Equation of line using Slope

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