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Phổ biến Word Problems >

the product of a number and 7 that is decreased by 8 is at least 12

Lời Giải

t h e p ro d u c t o f a n u mb er an d 7 t ha t i s d ecre a se d b y 8 i s a t l e a s t 12

Lời Giải

x \geq \frac{20}{7}

Các bước giải pháp

Represent the number with

x

A.T.Q.:

x \cdot 7 - 8 \geq 12

Giải

x, x \cdot 7 - 8 \geq 12 : x \geq \frac{20}{7}

x \geq \frac{20}{7}

Ví dụ phổ biến

If the excess of a number over 12 is 8, calculate the number Find two consecutive whole numbers that sqrt(45) lies between.the sum of two numbers is 95. If twice the smaller number is subtracted from the larger number, the result is 8. Find the two numbers.7 decreased by twice a number is 11 Eight more than the product of a number and 9 equals 4