Step-by-step explanation:
working together, Sasha and Lorenzo can wash the dishes and 18 minutes. Washing the dishes alone, it will take Sasha 15 minutes more than the amount of time it would take Lorenzo to wash the dishes alone. How long will it take Lorenzo to wash the dishes alone?
Sasha finishes the job alone in 18+15=33 minutes
L = time it takes Lorenzo alone
S = time it takes Sasha alone
Every minute,
Lorenzo will finish 1/L of the job
Sasha will finish 1/S of the job = 1/33
Together, they will finish 1/S+1/L of the job.
We know that it takes them 18 minutes to finish the job together, so we have
1/L + 1/S = 1/18
1/L + 1/33 = 1/18
1/L = 1/18 - 1/33 = 5/198
So
L = 198/5 = 39 3/5 minutes = 39.6 minutes
Answer: it will take Lorenzo 39.6 minutes to finish the dish-washing.
Answer:
if u answer my question i will answer your
Step-by-step explanation:
Answer:
A has 263 calories
B has 257 calories
Step-by-step explanation:
system of equations:
a + 2b = 777
2a + b = 783
I multiplied the first equation by -2 to eliminate the 'a' terms
-2a - 4b = -1554
+ <u> 2a + b = 783</u>
-3b = -771
b = 257
solve for 'a'
a + 2(257) = 777
a + 514 = 777
a = 263
Answer:
13/20 Hours
Step-by-step explanation:
you have to find a common denominator. (20) You do 4x5 and 5x4 both equal 20. Then you do 1x5=5 and 2x4=8 then 8+5=13 then you make your fraction which is 13/20.
Step-by-step explanation:
subtract 7155 from both sides, multiply both sides by 10130, and then divide both sides by two
