Answer:
Kate 55 hours
Dave 70 hours
Sarah 35 hours
Step-by-step explanation:
Let k be Kate's hours
Dave = 15 + k
Sarah = k- 20
Dave + Kate + Sarah = 160
15 + k + k + k - 20 = 160
3k - 5 = 160
3k = 165
k = 55
Kate worked 55 hours
Dave worked 70 hours
Sarah worked 35 hours
Answer: A. $3.30
If you divide 6.60 by 2 you get 3.30
If you divide 9.90 by 3 you get 3.30
If you divide 13.20 by 4 you also get 3.30
Cm wait what is the question
SAcube=6side^2
SA=294
294=6side^2
divide both sides by 6
49=side^2
sqrt both sides
7=side
the side length is 7 and volume is 343 cubic yards
Well I'm assuming you mean percent by o/o
Percentages are out of a hundred so you would write it 228/100
