Answer:
Step-by-step explanation:
First, you need to get one like term in each equation the same in order to eliminate. To do less damage to the equation, we'll use the x terms.
To get the x terms the same, multiply both <em>equations</em> by the opposite x term:
Simplify by multiplying. Use the distributive property for the left side (remember, two negatives make a positive and a negative multiplied by a positive will always be negative):
Now subtract all like terms. The x terms cancel out:
Now solve the new equation for y. Isolate the variable by using inverse operations. The term can be seen as -29×y. In order to isolate the variable, use division (opposite of multiplication). Divide both sides by 29:
Make the variable positive. Multiply both sides by -1:
The value of y is -2. Insert this value into either original equation:
Solve for x. Simplify multiplication:
Use inverse operations to get like terms on the same side of the equation. Add 10 to both sides (addition is the opposite of subtraction) to cancel out the -10 on the left:
Isolate the variable using inverse operations. The x term can be seen as 2×<em>x</em>. Division is the opposite of multiplication, so divide both sides by 2:
The value of x is -3. Therefore, the solution to the system is:
:Done
There are 4 even numbers in your sample space - 2,10,30, and 36 out of 7 total numbers.
P(even) = 4/7.
A or B Is the answer I hoped this eliminated your choices a little<span />
Answer:
The parenthesis means to multiply the numbers. I don't understand any of these either but I hope this helps.
Step-by-step explanation:
Answer:
k =
Step-by-step explanation:
The equation of proportionality has the form
y = kx ← k is the constant of proportionality
y = x ← is in this form
with k =