Answer:
68°
the brainlest answer I can get
Answer:
39 students
Step-by-step explanation:
let x represent the number of students taking both current event and foreign language
there are : 70 eight grader taking current event and 54 taking foreign
70+54-x=93
-x=93-124
x= 31 students taking both
number of eighth graders take only a current events class and not a foreign language class: 70-31=39 students
Answer:
300ft
Step-by-step explanation:
Answer:
6 days
Step-by-step explanation:
First we have to write an expression that represents Johnny's and Sal's banking plans.
Johnny: He has an initial value of $100 and that value will increase by $15 every day. So the expression looks like: 15x + 100, where x is the amount of days it's been.
Sal: An initial value of $250 and the value will decrease by $10 everyday. The expression looks like: -10x + 250, where x is the amount of days it's been.
To find how many days they have until they have the same amount of money in the bank, we can set the expressions equal to each other and solve for x:
15x + 100 = -10x + 250
Add 10x to both sides to isolate the x on one side of the equation:
25x + 100 = 250
Subtract 100 from both sides of the equation to isolate 25x:
25x = 150
Divide both sides by 25 to find the value of x:
x = 6
Since x represents the amount of days it's been, x = 6 means that it will take 6 days for their bank accounts to have the same amount of money in them.
Hope this helps :)
The revenue when the number of units is 18 is -135
<h3>How to determine the revenue?</h3>
The given parameters are:
Revenue function
R(x) = x *P(x)
Where
P(x) = 42/(4) − x
Substitute P(x) = 42/(4) − x in the equation R(x) = x *P(x)
R(x) = x * [42/(4) − x]
The number of units sold is 18.
So, we have:
R(18) = 18 * [42/(4) − 18]
Evaluate the expression
R(18) = -135
Hence, the revenue when the number of units is 18 is -135
Read more about revenue functions at:
brainly.com/question/25623677
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