Variables that are the same are added so 4a and 2a are added making it 6a. Now you have 13+6a=3a+1. Now you have to move things. Move the 3a to the other side making it a negative. So now you have 13+6a-3a=1. You now have 13+3a=1. So move the 13 to the other side. 3a=13-1. Which makes 3a=12. All you have to do now is 12 divided by 3. So a=4
The biker wants to sell a bike for $600 post mark up. You are trying to figure out the retail price as the store owner so that after the 55% mark up, the sale price is $600.
So to do so, take 600÷1.55 = $387.10.
Answer:
For this case from the info given we have the estimated proportion of people who thinks that Children of illegal inmigrants should be able to attend public school
So then the value reported 45% or in fraction 0.45 represent the sample proportion fo interest.
And this value was calculated with a sample of n =1000 people.
And X for this case is 450, because 0.45*1000=450
The real interest is on the population proportion of people who thinks that Children of illegal inmigrants should be able to attend public school
Step-by-step explanation:
Assuming the following question : "Give the relevant proportion using correct notation. Your answer should be an expression composed of symbols: A recent headline states that 45% Think Children of illegal inmigrants Should Be Able to Attend Public School. The report gives the results of a survey of 1000 randomly selected likely voters in the US."
For this case from the info given we have the estimated proportion of people who thinks that Children of illegal inmigrants should be able to attend public school
So then the value reported 45% or in fraction 0.45 represent the sample proportion fo interest.
And this value was calculated with a sample of n =1000 people.
And X for this case is 450, because 0.45*1000=450
The real interest is on the population proportion of people who thinks that Children of illegal inmigrants should be able to attend public school
Answer: 16
Step-by-step explanation:
Tickets for a play were $2 for a child and $4 for an adult.
Tickets price for a child= $2
Tickets price for an adult= $4
One adult brought 4 children. This will give a price of:
(1×4) + (2×4) = 4+8 = $12
The remaining adults brought 2 children each.
Let the remaining adults be y. Each adult will spend:
4+(2×2) = 4+4 = $8
Since there are y adults, it will give 8×y = 8y.
8y + 12 = 60
8y = 60-12
8y = 48
y = 48/8 = 6
The remaining adults are 6. Since we had one adult earlier, total adults will be 7.
To get the number of children that went to the play will be:
(P × number of children) + (price× number of adults) = $60
= (2 × children) + (4 × 7) = $60
= (2 × children) + $28 = $60
= (2 × children) = $60 - $28
= (2 × children) = $32
Children= 32/2
Children= 16
There are 16 children at the play.
Answer:
The equation represents the valid step in solving the given expression
Therefore the option
Step-by-step explanation:
Given expression is
To solve the given expression as below :
cubing on both sides we get
The equation represents the valid step in solving the given expression
Therefore the option