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jeka94
3 years ago
15

Choice of 1 of 3 pies and choice of 1 of 3 drinks how many ways can you order

Mathematics
1 answer:
solong [7]3 years ago
8 0

Answer:

9

Step-by-step explanation:

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30% of what number is 6
Hitman42 [59]

Answer:

20

Step-by-step explanation:

6/0.3=20

6 0
4 years ago
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The pastor divided the 3,000 circulars among 15 teenagers. How many circulars did each young person receive?
pav-90 [236]
Each young person received 200 circulars.

3,000/15= 200
7 0
3 years ago
for what value of k, the line joining 3x-ky+7=0 is perpendicular to the line joining (4 ,3) and ( 5, -3).
Schach [20]

Answer:

  • k = 18

=========

<h2>Given</h2>

<h3>Line 1</h3>
  • 3x - ky + 7 = 0

<h3>Line 2</h3>
  • Passing through the points (4, 3) and (5, - 3)

<h2>To find</h2>

  • The value of k, if the lines are perpendicular

<h2>Solution</h2>

We know the perpendicular lines have opposite reciprocal slopes, that is the product of their slopes is - 1.

Find the slope of line 1 by converting the equation into slope-intercept from standard form:

<u><em>Info:</em></u>

  • <em>standard form is ⇒ ax + by + c = 0, </em>
  • <em>slope - intercept form is ⇒ y = mx + b, where m is the slope</em>

  • 3x - ky + 7 = 0
  • ky = 3x + 7
  • y = (3/k)x + 7/k

Its slope is 3/k.

Find the slope of line 2, using the slope formula:

  • m = (y₂ - y₁)/(x₂ - x₁) = (-3 - 3)/(5 - 4) = - 6/1 = - 6

We have both the slopes now. Find their product:

  • (3/k)*(- 6) = - 1
  • - 18/k = - 1
  • k = 18

So when k is 18, the lines are perpendicular.

4 0
2 years ago
What is the slope of a line perpendicular to the line is question is 3x-3y=54? fully reduce your answer. (it’s not 1)
neonofarm [45]

Answer:

-1

Step-by-step explanation:

Has to be the opposite

4 0
3 years ago
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Question 2 pleaseee !!!!!!
Leya [2.2K]
It’s 40 degrees
I subtracted 180 minus the 150 and got 30 then addd 110 and 30 and got 140 then substractef that from 180 and got 40
4 0
4 years ago
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