Answer:6 6/13
Step-by-step explanation:
Multiply both sides of the equation by
4
.
3
x
=
7
⋅
(
4
)
−
x
3
⋅
4
Simplify each term.
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3
x
=
28
−
4
x
3
Move all terms containing
x
to the left side of the equation.
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13
x
3
=
28
Multiply both sides of the equation by
3
13
.
3
13
⋅
13
x
3
=
3
13
⋅
28
Simplify both sides of the equation.
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x
=
84
13
The result can be shown in multiple forms.
Exact Form:
x
=
84
13
Decimal Form:
x
=
6.
¯¯¯¯¯¯¯¯¯¯¯¯
461538
Mixed Number Form:
x
=
6
6
13
They are same side interior angles and same side interior angles are supplementary (add up to 180 degrees).
So, 6x+12+4x+18=180
Combine like terms:
10x+30=180
Subtract 30 from both sides:
10x=150
Divide both sides by 10:
x=15.
Therefore, the angles are same-side interior angles and x=15.
Answer:
Sales tax= $6.30
Jacket= $0.9630
Step-by-step explanation:
Jacket price= $90
Sales tax= 7%
Sales tax in dollars
=7/100×90
=$6.30
Jacket in cents
=$90+$6.30
=$96.30 ÷100
=$0.9630
Answer:
19/100
Step-by-step explanation:
Answer:
The expression 9n + 1 represents the perimeter
sum of the sides of the triangle, equal to the perimeter:
x + 3n+2 + 2n-1 = 9n + 1
x + 5n + 1 = 9n + 1
x = 9n +1 - 5n -1
Answer: x= 4n