Say x = the number of items being purchased. Then we can write the equation, using seconds:

3x + 16 = 136

(3 seconds per item, plus 16 seconds to process payment, equals 136 seconds total.)

Subtract 16 from each side. Then divide both sides by 3.

5 0

3 years ago

The sum of three consecutive integers is 267. What is the largest integer?

Nata [24]

$n;\ n+1;\ n+2-the\ consecutive\ integers\\\\n+(n+1)+(n+2)=267\\\\n+n+1+n+2=267\\\\3n+3=267\ \ \ \ |subtract\ 3\ from\ both\ sides\\\\3n=264\ \ \ \ |divide\ both\ sides\ by\ 3\\\\\boxed{n=88}\\\\last\ integer:n+2=88+2=90\\\\Answer:\fbox{90}$

5 0

3 years ago

Length and breadth of a rectangle is 28 and 20 respectively. It's perimeter is ....... *

vampirchik [111]

Answer:

Step-by-step explanation:

Because the perimeter of a rectangle is 2 * (length) + 2 * (breadth),

P = 2 * 28 + 2 * 20

P = 56 + 40 = 96

3 0

3 years ago

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