Answer:
3
Step-by-step explanation:
8x + 7 = 31 Subtract 7 from both sides
<u> -7 -7</u>
8x = 24 Divide by 8
8x/8 = 24/8
x = 3
What multiplies to 7 and adds up to -8?
What multiplies to 7?
1×7
and
-1×-7
Which of these add up to -8?
1+7=8 but not -8
-1+-7=-8 do this is right
A negative plus a negative will add up together since they are the same and make another negative number
Answer: -1 and -7 multiply to 7 and add up to -8
The equivalent value of the sum for any value of "x" is 12x - 6
<h3>How to find the sum of functions?</h3>
Given the sum of the expression as:
3
∑ k(2x-1)
k=0
We need to take the sum of the function at the point where k = 0 to 3
3
∑ k(2x-1) = 0(2x-1) + 1(2x - 1) + 2(2x-1) + 3(2x - 1)
k=0
3
∑ k(2x-1) = 2x-1+4x-2+6x-3
k=0
3
∑ k(2x-1) = 12x - 6
k=0
Hence the equivalent value of the sum for any value of "x" is 12x - 6
Learn more on sum functions here: brainly.com/question/24295771
Answer:
So, Louis earns 12 dollars per hour.
To find the rate for Carl, we need to divide the money earned from the hours.
Carl earns 15 dollars per hour.
(a) Carl earns 15 dollars per hour.
(b) Carl earns more than Louis, because 15 > 12.
(c) In Picture
Answer:
25 square feet
Explanation:
Area of triangle= 1/2 * height * base
1/2 * 4ft * 12 1/2 ft
2ft * 12 1/2 ft
25 square feet
Hope this helps you :)
