Answer:
one solution: (2.5, 0)
Step-by-step explanation:
Given the following system of equations;
y = 2x - 5
-8x - 4y = -20
To find the solution to the equations, we would use the substitution method;
Substituting eqn 1 into eqn 2, we have;
-8x - 4(2x - 5) = -20
-8x - 8x + 20 = -20
-16x + 20 = -20
-16x = -40
x = 40/16
x = 2.5
Next, we would determine the value of y;
y = 2x - 5
y = 2(2.5) - 5
y = 5 - 5
y = 0
15000 because 15kg x 1000 = 15000g
Answer: 7
Step-by-step explanation:
3(x+2)=27
Step 1: Simplify both sides of the equation.
3(x+2)=27
(3)(x)+(3)(2)=27(Distribute)
3x+6=27
Step 2: Subtract 6 from both sides.
3x+6−6=27−6
3x=21
Step 3: Divide both sides by 3.
3x/3=21/3
x=7
Answer: Jalen will need three cups of combined sugar and flour to make banana bread.
The simplest form of an interest equation is A = P(1+rt)
where A = the total amount of money at the end, P = the principal (or amount of money you started with), r = the rate in percent, and t = the time in years.
In this case, P = 15000, r = 0.03 (because 3% in decimal form is 0.03), and t = 1:
So, after 1 year he will get $15450 back, making him $450 more.