Answer:
System of equations:
A bar soap costs $0.52 and a sponge costs $0.15
Step-by-step explanation:
Let be "x" the cost in dollars of a bar of soap and "y" the cost in dollars of a sponge.
Based on the information given in the exercise, you can set up the following system of equations:
You can use the Elmination method to solve the system of equations:
1. Multiply the first equation by -3 and the second one by 5.
2. Add the equations.
3. Solve for "x".
Then:
4. Substitute the value of "x" into any original equation and solve for "y":
6 more than 9 times a number x is -12...
6 + 9x = -12
<span>the quotient of a number t and 7, plus 2, is -4 ...</span>
(t/7)+ 2 = -4
Hope this helps :)
Answer: 2 weeks
Step-by-step explanation:
The office had already recycled 13 kilograms of paper this year and need to recycle a total of 29.
The number of kilograms left is:
= 29 - 13
= 16 kilograms of paper
Recycling at a rate of 8kg per week, the number of weeks it will take them to reach 16 kilograms is:
= 16 / 8
= 2 weeks
Answer:
B
Step-by-step explanation: