9514 1404 393
Answer:
The CPI increased 3.42% in Month 2.
Step-by-step explanation:
In a spreadsheet, the weighted sum is easily computed using the SUMPRODUCT( ) function. It multiplies the corresponding values of two arrays, then returns the sum of those products. If one of the values is a weight, then the result is a weighted sum.
Your CPI is computed as the weighted sum of the prices of the individual products. The percentage change is computed in the usual way:
pct change = ((new value)/(old value) -1) × 100%
Of course, the spreadsheet can format a fraction as a percentage, so the computation of the change can stop after 1 is subtracted from the ratio.
<h2>There are infinite ordered pairs are on the line because it has infinite solutions. I think but i'm not very sure.</h2>
9514 1404 393
Answer:
(x, y) ≈ (1.1642, 3.3930) and (3.4358, -0.39297)
Step-by-step explanation:
Solve the first equation for y, then substitute into the second.
5x +4/y = 7
4/y = 7 -5x
4/(7 -5x) = y
Then the second equation becomes ...
4x +x/(4/(7 -5x)) = 5
4x +x(7 -5x)/4 = 5
16x +7x -5x^2 = 20 . . . . . multiply by 4
5x^2 -23x +20 = 0 . . . . . put in standard form
We can use the quadratic formula to solve this.
x = (23±√((-23)² -4(5)(20)))/(2(5)) = (23±√129)/10
x = 2.3 ±√1.29 ≈ {1.1642, 3.4358}
y = 4/(7 -5x) = {3.3930, -0.39297}
Solutions are (x, y) ≈ (1.1642, 3.3930) and (3.4358, -0.39297).
Answer:
- 20
Step-by-step explanation:
Step 1:
0.6r + 3 = 0.1r - 7 Equation
Step 2:
0.5r + 3 = - 7 Subtract 0.1r on both sides
Step 3:
0.5r = - 10 Subtract 3 on both sides
Step 4:
r = - 10 ÷ 0.5 Divide
Answer:
r = - 20
Hope This Helps :)
Answer:
Step-by-step explanation:
So for this we have to find the percentage by using 'percentage of error'
If at first it was 15 then it went up to 19 we have to subtract 15 - 19= -4
Ignore the negative. Now divide= 4/19= 0.21
The size went up by 21%
