Brandy took 3 friends out for dinner. the cost of the meals was 46.50 . she left a 20% tip. what was the total cost including the tip?

The total cost of the meal including tip is $55.80.

Step-by-step explanation:

Cost of the meal = $46.50

tip = 20%

total cost = ?

Finding the tip cost:

20% of cost of the meal is equal to the tip cost.

20% of 46.50

(% = 1/100 and of means multiplication)

20/100 * 46.50

930/100

$9.30

20% tip = $9.30

Finding total cost:

Cost of the meal + tip

46.50 + 9.30

55.80

The total cost of the meal including tip is $55.80.

0.038

step-by-step explanation:

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week