Make an equation:
L = 4S - 3
Where 'L' is the amount of DVD's Leah has and 'S' is the aount of DVD's Sonia has.
Plug in 37 for 'L' and solve for 'S':
37 = 4S - 3
Add 3 to both sides:
40 = 4S
Divide 4 to both sides:
S = 10
So Sonia has 10 DVD's.
Answer:
8 inches of wire for 24 cents
Step-by-step explanation:
Simplify. Find the amount it costs for 1 inch of wire. Divide 45 with 15:
45/15 = 3
1 inch of wire costs 3 cents.
Now, solve for the the amount of wire (x) you can get for 24 cents
(1/3)(8/8) = (x/24)
1 x 8 = 8
3 x 8 = 24
x = 8
8 inches of wire for 24 cents
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The output of the function when x=4 is 23
<h3>How to determine the output</h3>
Given the function as;
f(x)=4x+7
We are told to find f ( 4)
This explains that we should substitute the value of x as 4 in the function:
To find the value of the function at x = 4 we have:
If f(x)=4x+7
Then,
Put 4 as a replacement for x, we have:
f ( 4) = 4 ( 4) + 7
Expand the bracket
f ( 4) = 16 + 7
Add the values
f ( 4) = 23
The value of the function is 23
We can see that the value of the function when x is 4 is 23
Thus, the output of the function when x=4 is 23
The complete question is;
For each function what is the output for the given input?
For f(x)=4x+7, find f(4)
Learn more about functions here:
brainly.com/question/2328150
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Answer:
72/5
Step-by-step explanation:
Multiply both sides of equation by x.
8= 5/9 x
Multiply both sides by 9/5.
8 times 9/5 = x
72/5 = x
Were are the problems i Cannot see them bro Sorry