Robert earned 10$ which is 4 less than twice what Eric earned ,how much did Eric earn?
2 answers:
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Answer:
To fill the aquarium, she will need to fill the container 320 times.
Step-by-step explanation:
This question can be solved using a rule of three.
Each pint has 0.125 gallons.
So each fill of the container contains 0.125 gallons. How many fills are needed for 40 gallons?
1 fill - 0.125 gallons
x fills - 40 gallons
To fill the aquarium, she will need to fill the container 320 times.
Answer: Option D
D. 880 = 45d + 70; 18 days
Step-by-step explanation:
We know that the cost of preschool is $ 45 per day plus a monthly fee of $ 70.
We also know that a total of $ 880 was paid last month
To write an equation that represents this situation, let us call d the number of days that Barry attends school
So the cost was:
Now we solve the equation for the variable d
The answer is the option D