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
<span>He bought 36 baseball cards. Since 3/4 of the 48 cards are baseball cards, you need to find 75% of 48, which is 36 cards. </span>
It's 0.720. you just divide 103 and 143 and get the first three numbers
first one is 40 and then 65 and then 65 again
Answer:
Convert the mixed numbers to improper fractions, then find the LCD and combine.
Exact Form: 21
/4 Decimal Form:
5.25 Mixed Number Form: 5 1
/4
Step-by-step explanation:
