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Phổ biến Word Problems >

a number decreased by 21 is equal to the product of a number and-23

Lời Giải

a n u mb er d ecre a se d b y 21 i s e q u a l t o t h e p ro d u c t o f a n u mb er an d - 23

Lời Giải

The number : \frac{7}{8}

Các bước giải pháp

Represent the number with

x

A.T.Q.:

x - 21 = x (- 23)

Giải

x, x - 21 = x (- 23) : x = \frac{7}{8}

The number : \frac{7}{8}

Ví dụ phổ biến

Use the given information to find the amount A in the account earning compound interest after 6 years when the principal is 3500. r=2.29%, compounded monthly Justin puts 500.00 into an account to use for school expenses. The account earns 4% interest, compounded monthly. How much will be in the account after 8 years?Seth puts 3,994.00 into an account to use for school expenses. The account earns 7.99% interest, compounded quarterly. How much will be in the account after 8 years?the sum of three consecutive even integers is-414. find the three integers the bán kính of a circle is 9 centimeters what is the area of the circle