Answer:
x = orgininal angle
3x +20 = supplementary angle
1. x + (3x+20) = 180
2. 4x + 20 = 180
3. 4x = 160
4. x = 40
The orginial angle is 40
The supplementary angle is 140
Step-by-step explanation:
1. define your varibles using the words given
2. add them together to equal 180, because they are supplmentary.
3. combine like terms.
4. subtract 20
5. divide by 4
6. you find x, now plug it back into your variables at the top:
x = 40
3(40) + 20 = 140
the width of a book is about ("25 x 20cm")
the length of a pencil is about 15cm (19cm if unsharpened)
Answer:
highest number is 118
middle number is 100
lowest number is 94
Step-by-step explanation:
R=24---between high and low is 24 numbers
M=104---average of the three numbers
highest number is 118
therefore if you subtract 24 from 118 therefore the lowest number is 94
Then i used a mean calculator and went up from 95 to 100 before the means matched.
Answer:
No
Step-by-step explanation:
in order for a slope to be perpendicularit needs to me the opposite recipricol
so to be perpendicular to 3/2 it would be -2/3
Answer:
69
Step-by-step explanation:
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