Erin and Seth want to leave a 20% tip at the restaurant where they just had lunch. Their bill was $23.00 and they are talking about different ways to figure out the final bill with tip. Decide which way will not work, and explain why. Method 1: Multiply 23 by 1.2 $23.00 x 1.2 =

Method 2: Multiply 23 by 0.2 $23.00 x 0.2 =

Method 3: Multiply 23 by 0.2 then add the answer to 23

Method 4: Use a proportion then add x to $23.00

answer: 230 miles ( vote ! )

step-by-step explanation:

180.39 minus 17.99 equals 162.4

then divide 162.4 by .80 to get 230

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

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m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

step-by-step explanation:

why? because i noticed a pattern. 60 120. those numbers without the zero, make the 6 times tables leaving your answer to be b since 6 times 4 is 24 and adding a zero making it 240.