Answer:
i believe the answer is D (which is 10)
Step-by-step explanation:
i just took the test. so you have to isolate X, so you add 2 to both sides and on the right you get answer of "5". so then you have to multiply both sides by "2/1" (which is the reciprocal of 1/2) and so on the left side so you're left with just "x", and on the right side you have 2/1 times 5/1 which equals "10".
Vertex:(-1,-4)
Concavity: up
Domain: -♾< x < ♾
Range: y > (or equal to) -4
Roots: (-3,0) (1,0)
Factors: (x + 3) (x - 1)
Equation: x^2 + 2x - 3
Nancy bought 354 short sleeve shirts and 177 long sleeve shirts.
Step-by-step explanation:
Given,
x represents the number of long sleeve shirts
y represents the number of short sleeve shirts
According to given statement;
x+y=531 Eqn 1
x = 2y Eqn 2
Putting value of x from Eqn 2 in Eqn 1
Dividing both sides by 3
Putting y=177 in Eqn 2
Nancy bought 354 short sleeve shirts and 177 long sleeve shirts.
Keywords: linear equation, substitution method
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