Liliana solved the equation below. When she tried to verify her answer, she realized she made an error.
2 answers:
Answer:
(B)
Step-by-step explanation:
The given expression is:
Upon solving the above expression, we get
Step 1. Solving the above equation, we get
Step 2. Subtracting 6 on both the sides of the above equation, we have
Step 3. The equation can be written as:
Step 4. Cross multiplying the above equation , we have
She made an error in step 2 as she added 6 on right hand side but in actual we have to subtract 6 on that side.
Thus, option (B) is correct.
You might be interested in
(a) Linear Equation:
(b) x-intercept : (10,0)
(c) y-intercept : (0,200)
(d) Domain : {0,1,2,3,4,5,6,7,8,9,10}
Range : {0,1,2,...,200}
Step-by-step explanation:
Step 1: As we can see in graph, money in Carla is decreasing in multiples of 20 can be referred as 20x.
Every week $20 is getting deducted from the total amount of $200.
Step 2: (a) So we can quote it in equation as,
where x represents number of weeks
Step 3: (b) x-intercept is where value of y becomes 0.
So, referring graph we can determine x intercept as x = 10. Point (10,0). which also means no money left in account.
Step 4: (c) y-intercept is where value of x becomes 0.
So, referring graph we can determine y intercept as y = 200. Point (0,200). which is starting value of money in account.
Step 5: (d) Domain : {0,1,2,3,4,5,6,7,8,9,10}
Range : {0,1,2,...,200}
Answer:
b. 9/100
Step-by-step explanation:
It helps if you have memorized the cubes of small integers. Of course, the ones needed here are ...
3³ = 27
10³ = 1000
The desired value can be simplified to ...