ANSWER

EXPLANATION
First we need to find the equation of the boundary line which passes through (-1,-3) with a y-intercept of -5.
The slope of this line is

The equation of this line is

Since the boundary line is solid and the upper half plane is shaded the required inequality is

Answer:
Step-by-step explanation:
y = x + 4
move +4 to the other side
sign changes from +4 to -4
y-4= x+4-4
y-4= x
Answer:
x=y-4
60% as a decimal is 0.6. The number of tickets sold the first day is 0.6*400 = 240 tickets.
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Hope this helps!
==jding713==
1152 grams of iron are required to make the alloy when combined with 144 grams of zinc
Step-by-step explanation:
We will use the proprtion to solve the problem
Let x2 be the quantity of iron when combined with 144 grams of zinc
So,
zinc in first alloy = z1 = 9 gm
Iron in first alloy = x1 = 72 gm
Zinc in second alloy = 144 gm
So,

Hence,
1152 grams of iron are required to make the alloy when combined with 144 grams of zinc
Keywords: Fractions, proportion
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