Answer:
it is 234
Step-by-step explanation:
The answer is the number 6
Answer:
<h2>18mins</h2>
Step-by-step explanation:
This problem is on combined work rate
given that
Marta can vacuum the house in 30 min
then her rate= 1/30
Also, her daughter will take 45 min to vacuum the house
her daughter's rate will be = 1/45
then the combined work rate is
1/30+1/45=1/T
30+45/30*45=1/T
75/1350= 1/T
1/18=1/T
This means that they will both take 18 minutes working together to vacum a house
Answer: C
Step-by-step explanation:
and 
<span>3x+5y= 12
5y = 12 -3x
y = (12-3x)/5
y = 12/5 - 3x/5
y = 2.4 -0.6x
or
y = -0.6x + 2.4</span>
