For 3 days, Reuben put $6 into his savings account each day. His parents also added a certain amount of money to the account each day. In the end, there was a total of $24 in the account. How much money did Reuben's parents add each day?
(a) Write an equation that could be used to answer the question above. First, choose the appropriate form. Then, fill in the blanks with the numbers 3, 6, and 24. Let x represent the amount (in dollars) Reuben's parents added each day.
b) Solve the equation in part (a) to find the amount (in dollars) Reuben's parents added each day. x= also for a put it in a equation like blank (x+blank)= blank or with the -
(a) The appropriate form for the equation is:
3(6 + x) = 24
(b) Solving for x:
3(6 + x) = 24
18 + 3x = 24
3x = 6
x = 2
Therefore, Reuben's parents added $2 each day to his savings account.
flip it around with the 6 and x
(a) The equation with the numbers flipped would be:
3(x + 6) = 24
(b) Solving for x:
3(x + 6) = 24
3x + 18 = 24
3x = 6
x = 2
Therefore, Reuben's parents added $2 each day to his savings account.
For his phone service, Josh pays a monthly fee of $27, and he pays an additional $0.06 per minute of use. The least he has been charged in a month is $105.78.
What are the possible numbers of minutes he has used his phone in a month?
Use m for the number of minutes, and solve your inequality for m.
Let m be the number of minutes Josh has used his phone in a month.
The total cost can be represented by the equation:
27 + 0.06m ≥ 105.78
Subtract 27 from both sides:
0.06m ≥ 78.78
Divide by 0.06:
m ≥ 1313
Josh has used at least 1313 minutes in a month.