Answer:
x = 0.36 y = -3.1
Step-by-step explanation:
(7x + 5y = -13)2
(-2x - 7y = 21)7
14x + 10y = -26
-14x - 49y = 147 Add both equations together
-39y = 121 Divide both sides by -39
y = -3.1
Plug -3.1 in for y into one equation
7x + 5(-3.1) = -13
7x -15.5 = -13
+15.5 +15.5 Add 15.5 to both sides
7x = 2.5 Divide both sides by 7
x = 0.36
To solve an equation for one variable, we will utilize PEMDAS ( parentheses, exponents, multiplication/division, add/subtract) but backwards. So we will first add/subtract any numbers to the other side to get the variable by itself. We will then divide/multiply any numbers to get the variable by itself.
Given:
Number of numbers etween 17 ato 27 = 11
Required: Probability of choosing number from 17 to 27
Explanation:
Required probability
Final Answer: Probability of drawing a number from 17 to 27 is 1/11.
Answer:
Step-by-step explanation:
Yes correct.
Commutative property upon integer addition/subtraction
-3 + 2 = 2 - 3
Answer:
The best option for him would be a real interest rate of 5%.
Step-by-step explanation:
The nominal interest rate is the one that represents the percentage of increase of the money that is in a certain investment, without discounting the depreciation due to inflation or the payment of taxes.
On the other hand, the real interest rate is the one that represents the real increase in the money invested, after discounting inflation and any taxes to be paid.
Therefore, the best option for Oscar would be to invest his $ 4,000 in a savings account with a real interest rate of 5% per year.
