Directions: Read each item carefully. Solve.
1. Five more than a number is 29.
2. A number is increase by 16 equals to 76.
3. Three times a number is 12.
4. A number n decreased by 38 is 80.
5. If nine is added to the difference of a number and twelve, the sum is fifty-five
Share
Answer:
1. 24
2.60
3.4
4.118
5. The number is 58
Step-by-step explanation:
1. in the question, "more than" means addition so it can be translated to "5 plus a number is equal to 29". So, to get the number, you should do the opposite operation of addition which is subtraction. 29 - 5 = 24
To check:
5 + 24 = 29
2. Same as number 1, "increase" means addition so to get what the number to be added to 16, you should subtract 76 by 16. 76 - 16 = 60
To check:
60 + 16 = 76
3. "Three times a number" means to multiply the number to 3. So, to get the answer you should use the operation opposite to multiplication which is division (divide 12 by 3). 12 ÷ 3 = 4
To check:
4 × 3 = 12
4. "decreased" means to subtract. So, to find the number to be subtracted by 38, use the opposite operation. Add 38 to 80. 80 + 38 = 118
To check:
118 - 38 = 80
5. Same as the previous question, you should do use the opposite operation. In the question, it says "difference of a number and 12" which means 12 will be subtracted but since we will do the opposite, you will add 12 to 55. 12 + 55 = 67. Then, it also says "nine is added" so we should subtract 9 to the sum of 55 and 12. 67 - 9 = 58
To check:
9 + (58 - 12) = 55
9 + 46 = 55