2x+y=-4
5x+3y=-6
multiply first equaton by -5 and second by 2 then add them
-10x-5y=20
<u>10x+6y=-12 +</u>
0x+1y=8
y=8
the y value is 8
Answer:
for part A its C and for B its 2
Step-by-step explanation:
The total is 28 and there is 13 points total so you have to do 28/13
The interest on the investment when the interest rate is 9% is; $101.25.
<h3>What is the interest when the interest rate is 9%?</h3>
It follows from the task content that the interest on an investment varies directly as the rate of interest.
Hence, it follows from proportion that the interest when the interest rate is; 9% can be calculated as follows;
= 9 ×45/4
= $101.25
Ultimately, the interest on the investment evaluated by means of proportional reasoning is therefore; $101.25.
Read more on proportional relationship;
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Answer:
The sum of the series is 3/2
Step-by-step explanation:
Given
1 + 1/3 + 1/3^2 + ....
Required
The sum of the series
This implies that we calculate the sum to infinity.
We have:
-- The first term
First, calculate the common ratio (r)
Change to product
Solve
The sum of the series is then calculated as:
Solve the denominator
Express as product
Answer:
15
Step-by-step explanation:
f(x) = x^2+1
f(2) = 2^2+1 = 4+1 = 5
g(x) = 3x+1
g(3) = 3(3)+1 = 9+1 = 10
f(2)+g(3) = 5+10 =15
