For this Question use the substitution method.
5x+2y = $48 ------First Equation.
3x+2y = $32 ------ Second Equation
x= 48-2y/ 5 ( 48-2y divided by 5)
Put the value of x in the second equation.
3(48-2y/5)+2y = $32
(144-6y/5) + 2y = $32
Take L.C.M
144-6y+10y/5 = $32
144+4y = 32*5
144+4y = 160
4y = 160-144
4y = 16
y = 4
Now put the value of y in any equation.
5x+2(4) = $48
5x+8 = $48
5x = 48-8
5x = 40
x = 8
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A Dress costs $8 and a belt costs $ 4.
Combine like terms
2a² + 6a² = 8a²
8a² - 5
Answer:
30
Step-by-step explanation:
f(-5) = -7(-5) - 5
= 35 - 5 = 30
Line CA is a straight line, meaning it adds up to 180°
Line BE splits the line into two supplementary angles, because when the two angles are added together they will equal 180°
Using the rule of supplementary angles, we can then make the equation 3x + 8x + 15 = 180
Now, simplify the equation by combining like terms
11x + 15 = 180
To solve, isolate x
11x + 15 = 180
11x = 165
x = 15
Answer:
Which statement best describes how to determine whether f(x) = 9 - 4x^2 is an odd function?