Answer:
y=x-4
Step-by-step explanation:
3x-2y=7
-3x -3x
-2y=-3x+7
/-2 /-2
y=x-
perpendicular lines always have opposite reciprocal slopes
3/2--> -2/3
y=-2/3x+b
-2=-2/3(-3)+b
-2=2+b
-2 -2
b=-4
y=-2/3x-4
What is the average of 1.90 7.99 4.33 5.21?
2 answers:
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Answer:
See Explanation
Step-by-step explanation:
Required
Write three equivalent ratios
<em>To solve these questions, we do the following:</em>
<em>Whatever is being applied to a part of the ratio must be done on the other part</em>
<em></em>
Solving (9):
Multiply through by 2
Multiply through by 3
Multiply through by 5
<em>Hence, the equivalents are: </em><em></em>
Solving (10):
Ratio = 1.5 to 3.5
Multiply by 2
Multiply by 3
Multiply by 4
<em>Hence, the equivalents are: </em><em>3 to 7, 4.5 to 10.5 and 6 to 14</em>
Solving (11):
Ratio = 6.25 to 1.25
Divide by 5
Multiply by 2
Multiply by 4
<em>Hence, the equivalents are: </em><em>1.25 to 0.25, 12.5 to 2.5 and 25 to 5</em>
Solving (12):
Multiply by 2
Multiply by 4
Multiply by 6
<em>Hence, the equivalents are: 6:7, 12:14 and 18:21</em>
Solving (13)
Convert mixed fraction to improper fraction
Multiply by 2
Multiply by 3
Multiply by 12
Hence, the equivalents are: 10/3:5/2, 5 : 15/4, and 20:15