Answer:
52%
Step-by-step explanation:
48-23=25
25÷48×100
≈52%
(-5, 2 ) means x = -5 and y = 2
so answer is <span>point D</span>
Answer:
- Sara worked 22 hours
- Joan worked 18 hours
- Erin worked 9 hours
- The three of them worked 49 hours in total
Explanation:
You may set a numerical equation by translating the word statements into arithmetic expressions in this way:
1) Sara worked 22 hours last week: 22
2) Joan worked 4 hours less than Sara: 22 - 4
3) Erin worked half as many hours as Joan: [22 - 4] / 2
4) How many hours did Sara, Joan, and Erin work last week? : add up every arithmetic expression:
- 22 + (22 - 4) + (22 - 4) / 2
5) Simplify doing the operations:
- 22 + (22 - 4) + (22 - 4) / 2 = 22 + 18 + 18/2 = 22 + 18 + 9 = 49
Conclusion:
- Sara worked 22 hours
- Joan worked 18 hours
- Erin worked 9 hours
- The three of them worked 49 hours in total.