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Популярное Word Problems >

a number that when decreased by 30% is 72

Решение

a n u mb er t ha t w h e n d ecre a se d b y 30% i s 72

Решение

Amount before reduction : 102.85714 \dots

Шаги решения

Translate the problem into an equation:

72 = x - 0.3 x

72 = x - 0.3 x : x = \frac{720}{7}

\frac{720}{7} = 102.85714 \dots

Amount before reduction : 102.85714 \dots

Популярные примеры

Estelle opened a savings account and deposited 300.00 as principal. The account earns 7% interest, compounded annually. What is the balance after 9 years?what is the smallest surface area of a circular cylinder with a объем of 330 cm, give the answer in numbers Each side of a cube is 33.4 feet long. What is the объем of the cube number is 30 less than its square. Find all such numbers.a number that when decreased by 30% is 64