Answer:
0.714286
Step-by-step explanation:
yes
Answer:
Step-by-step explanation:
Jen: (1+2/3)x4 to find average (multiply by 4 to get 1 hour)
Jen's ave. is 3+2/3 mph
Max: (1.5)x5= average
Max's is 9 mph
Max is faster.
Answer:
41 + 11i
Step-by-step explanation:
Note that i² = - 1
Given
(3 - 5i)(2 + 7i) ← expand using FOIL
= 6 + 21i - 10i - 35i² ← collect like terms
= 6 + 11i + 35
= 41 + 11i
Answer:
x = 4.5
x = 4.1
Step-by-step explanation:
Answer:
10x - 15
Step-by-step explanation:
let Emily's be x hrs
Abbey = 3x-5 hrs
Nathan = 2 * Abbey's time= 2(3x-5)
= 6x-10 hrs
Expression= x + 3x-5 + 6x-10 = 10x - 15 hrs
Therefore, 10x - 15 is the EXPRESSION THAT DENOTES THE TOTAL NUMBER OF HOURS SPENT FOR DOING HOMEWORK COLLECTIVELY.
