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פּוֹפּוּלָרִי Word Problems >

Twice the difference of a number and 7 is equal to 8.

פתרון

Tw i ce t h e d i ff ere n ce o f a n u mb er an d 7 i s e q u a l t o 8.

פתרון

The number : 11

צעדי פתרון

Represent the number with

x

A.T.Q.:

2 (x - 7) = 8

2 (x - 7) = 8, x

פתור בשביל:

x = 11

The number : 11

דוגמאות פופולריות

Suppose an investment earns 1.8% interest compounded continuously. Find the future value of a 5800 investment after 15 years. Round your answer to the nearest cent, if necessary.In 1 year, Debbie wants to buy a bicycle that costs 2,000.00. If she opens a savings account that earns 12% interest compounded continuously, how much will she have to deposit as principal to have enough money in 1 year to buy the bike?get the number (10)/(27*(5)^{8/3)}the quotient of a number x and 10 is greater than 65 Bert earned some money doing odd jobs last summer and put it in a savings account that earns 5% interest compounded quarterly. After 4 years, there is 1,000.00 in the account. How much did Bert earn doing odd jobs?