Three decimals:
5.414
5.415
5.416
Ordered decimals:
5.414,5.415,5.416,5.417,5.418
10d+ 25q+5n= 805
D= n+8
Q= n+ 5
10d+ 25q+5n= 805
10(n+8)+25(n+5)+5n=805
10n+80+25n+125+5n=805
40n+205=805
40n=805-205
40n= 600
N=600/40
N= 15
D= n+8
D= 15+8
D= 23
Q=n+5
Q=15+5
Q=20
So 15 nickels ,23 dimes and 20quarters .
To check
15(0.05)= $0.75
23(0.10)=$2.30
20(0.25)=$5.00
Add it
5.00+2.30+0.75=8.05
7.30+.75=8.05
8.05=8.05
30% of 22.40 is 6.72. 6.72 plus 22.40 is 29.12. Therefore the answer is 29.12.
Answer:
Lisa = 7 hours and 15 minutes
Naila = 10 hours and 45 minutes
Step-by-step explanation:
Naila = N
Lisa = L
Naila worked:
N = 3.5 + L
In total, they worked:
N + L = 18
Lisa worked:
L = h
Substitute values into the total equation
3.5 + L + L = 18
Solve
2L = 14.5
L = 7.25 = 7 hours and 15 minutes
N = 7.25 + 3.5 = 10.75 = 10 hours and 45 minutes
Hope this helps :)
