Answer:
168
Step-by-step explanation:
3 + .11x = 21.48
.11x = 18.48
x = 168
1 person = 2/5
4/5 2/5 4/5 2/5 4/5 2/5 4/5 2/5 4/5 2/5
2/3 chance you pull red on the first pull because there are 50 red to the 25 black marble
The negative outside a function with no other transformations reflects the graph of the function over the x-axis.
<h3>How to Interpret Graph Transformations?</h3>
When we talk about reflection in transformation, we know that ;
Reflection over x-axis is defined as a reflection or flip over the x-axis where the x-axis is the line of reflection used.
The formula for this is: (x, y) → (x, −y) . To reflect an equation over the x-axis, simply multiply the output variable by negative one: y = f(x) → y = −f(x)
Thus, we can conclude that the negative outside a function with no other transformations reflects the graph of the function over the x-axis.
Read more about Graph Transformations at; brainly.com/question/4289712
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Answer:
The solution is ( 1/2 , 5)
Step-by-step explanation:
∵ 8x + 7y = 39 ⇒ (1)
∵ 4x - 14y = -68 ⇒ (2)
Multiply (1) by 2
16x + 14y = 78 ⇒ (3)
Add (2) and (3)
∴ 20x = 10 ⇒ x = 10 ÷ 20 = 1/2
∴ x = 1/2
By substitute in (1)
8(1/2) + 7y = 39 ⇒ 7y = 39 - 4 = 35 ⇒ y = 35 ÷ 7 = 5
∴ y = 5
∴ The solution is ( 1/2 , 5)
To check:
8(1/2) + 7(5) = 4 + 35 = 39 = R.H.S
4(1/2) - 14(5) = 2 - 70 = -68 = R.H.S
