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2 years ago

200% of d is 18 what is d

Mathematics

2 answers:

MissTica2 years ago

7 0

Answer:

d = 9

Step-by-step explanation:

200% = double

aka 2d = 18

d = 9

Irina-Kira [14]2 years ago

6 0

Answer:

d = 9

Step-by-step explanation:

Of means multiply and is means equals

200% * d = 18

Changing to decimal form

2.00 * d = 18

Divide each side by 2

2d/2 = 18/2

d = 9

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Write an equation of the line containing the point (6,-4) and perpendicular to.the line y=-2x-3

igor_vitrenko [27]

Answer:

$y=\frac{1}{2}x-7$

Step-by-step explanation:

So we need to find an equation of a line that crosses the point (6,-4) and is perpendicular to y = -2x -3.

First, let's find the slope of the line we want to write. The line we want is perpendicular to y = -2x -3. Recall that if two lines are perpendicular to each other, their slopes are negative reciprocals of each other. What this means is that:

$m_1\cdot m_2=-1$

Plug -2 for one of the slopes.

$-2\cdot m_2=-1$

Divide by -2 to find the slope of our line.

$m_2=1/2$

Thus, our line needs to have a slope of 1/2.

Now, let's use the point-slope form. The point-slope form is given by:

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

Plug in 1/2 for the slope m and let's let our point (6,-4) be x₁ and y₁. Thus:

$y-(-4)=\frac{1}{2}(x-6)\\$

Simplify and distribute:

$y+4=\frac{1}{2} x-3$

Subtract 4 from both sides:

$y=\frac{1}{2}x-7$

The above is the equation that passes the point (6,-4) and is perpendicular to y = -2x -3.

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3 years ago

Amelia enjoys running and often runs at a steady pace. At this pace, Amelia can run 50 yards in 12 seconds. What is Amelia's uni

valentinak56 [21]

Answer:

4.16

Step-by-step explanation:

50/12

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2 years ago

17. Solve for p in the equation 7p = –63.

never [62]

It’s A

Explanation / when you multiply 7 by -9 you get -63

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frosja888 [35]

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3 years ago

The invitations to a holiday party cost a total of $31.50 if each invitation cost $0.75 cents how many invitations were sent out

babunello [35]

Answer:

Step-by-step explanation:

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