Question

3. When 25 is added to 7 times a number, the result is 81. Find the number.

4. Nancy boughtone soft drink for $3 and 4 candy bars.She spent a total of $23. How much did eachcandy bar cost?Let c= the cost of each candy bar3+4=23

5. You had a summer job mowing laws in your neighborhood. You earn $20 per lawn and you already had $35 in your pocket at the beginning of the day. If you had $155 at the end of the day, how many lawns did you mow?

6. Four lessthan10 times a number is 94. What is the number?

7. Jack currently weighs 200 pounds. He begins a diet and is losing3 pounds per week. How many weeks will it be until he weighs161 pounds?Let w= the number of weeks200−3=161

8. Tickets for the dance cost $5 per student. If Ms. Kostik paid $300 for the DJ, how many students attended if the profit from the dance was $975.Let n= the number of students5−300=975

9. When 12 is subtracted from 3 times a number, the result is 24. Find the number.Let n= the number.3−12=24

Bonus: A triangle has 3 angles measures of (3)°,(2+15)°, and (3+5)°. Find each angle. (The SUM of the angles should equal 180°.

Answer 1

3. 8

4. 5

5. 6

6. 9.8

7. 13

8. 135

9. 12

Bonus is the one that confused me haha sorry

Explanation:

3. 8 x 7 = 56 + 25 = 81

4. 4 x 5 = 20 + 3 = 23 (3 + 4c = 23) c=5

5. 6 x 20 = 120 + 35 = 155

6. 9.8 x 10 = 98 - 4 = 94

7. 200 - 161 = 39 (which is how many pounds he has to lose) 39/3 = 13 (200 - 3w = 161) w=13

8. 135 x 5 = 675 + 300 = 975 (5n+300=975) n=135

9. 12 x 3 = 36 - 12 = 24 (3n-12=24) n=12