Answer:
Amount needed by Zoya to meet her fundraising goal ≥ $ 300
Number of Bracelets possessed by Zoya = 100
Cost of single bracelet = $ 5
To meet her goal , we need to convert these statement into equation
Let number of Bracelets sold = x
1. x≤ 100
2. 5 x ≥ 300
Dividing both sides by 5, we get
x ≥ 60
The two inequality are : x ≤ 100 and x ≥ 60
So the inequality is : 60 ≤ x≤ 100.
Answer:
3+x
Step-by-step explanation:
“the sum of three and a number”
Frame an expression for the given statement
Expression contains variables and operators like add, subtract , multiply and divide
LEt the unknown number be x
Sum represents the addition of two numbers
Sum of three and a number means the addition of 3 and number x
So the expression become 3+ x
The equivalent value of the expression (1/2 x 15) is 7.5.
In mathematics, an algebraic expression is an expression built up from constant algebraic numbers, variables, and the algebraic operations.
Given is to solve the expression as -
1/2 x 15
We can write the expression as -
{x} = 1/2 x 15
{x} = 15/2
{x} = 7.5 x 2/2
{x} = 7.5
Therefore, the equivalent value of the expression (1/2 x 15) is 7.5.
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Answer:
7.5
Step-by-step explanation:
it's basically just 15 divided by 2
This function can be represented by the quadratic equation f(x)=0.15(x+60)^2
This situation can be represented by the exponential function f(x)=60 x 1.15^x
This function has no x-intercept
After 4 years the value of the investment will be $120.00
After 6 years the value of the investment will be $653.00
After 7.86 years the value of the investment will be 3 times the initial value
After 8 years the value of the investment will be $184.00
Answer: The function can be represented by the exponential function :
This function has no x-intercept .
After 7.86 years the value of the investment will be 3 times the initial value .
After 8 years the value of the investment will be $184.00.
Step-by-step explanation:
The exponential growth function is given by :-
, where A is the initial value , r is the rate of growth and x is the time period.
Given: A = $60
r=15%=0.15
Now, the function can be represented by the exponential function :
We know that exponential function has no intercept , thus this function has no intercept.
∴
Now, at x=4
Now, at x=6
Now, at x=7.86
∴ After 7.86 years the value of the investment will be 3 times the initial value
Now, at x=8
Answer:
The number of ways to choose a set of 9 pencils from a selection of 10 is 10.
Step-by-step explanation:
According to the combination formula, the total number of ways to select r items from total n items is
Total number of pencils = n = 10
Number of selected pencils = r = 9
The number of ways to choose a set of 9 pencils from a selection of 10 is
Therefore the number of ways to choose a set of 9 pencils from a selection of 10 is 10.