3 years ago

Which problem is solved using this model?

1 answer:

6 0

A because it start at 20 and divided 1/2 each time. And when you solved 2/ 1/2 , you get 4 and that is correct because you have 4 arrows.

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Brainlyyyyyyyy just helppppppppppppppppppppppppppppppppppppppppppp

ANTONII [103]

Answer:

y = 50

Step-by-step explanation:

Since 20 is even with 100, all we have to do is multiply both sides by 5.

(5 × 20%) × y = 10 × 5

y = 50

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The price of apples is $5.60 for 4 pounds. write the price as a unit rate.

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Answer:

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3 years ago

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3 years ago

Y = −(x + 4)2 − 7 vertex

ICE Princess25 [194]

Answer:

The vertex (h,k) is (-4,-7).

Step-by-step explanation:

I assume you are looking for the vertex $y=-4(x+4)^2-7$ .

The vertex form of a quadratic is $y=a(x-h)^2+k$ where the vertex is (h,k) and a tells us if the parabola is open down (if a<0) or up (if a>0). a also tells us if it is stretched or compressed.

Anyways if you compare $y=-4(x+4)^2-7$ to $y=a(x-h)^2+k$ , you should see that $a=-4,h=-4,k=-7$ .

So the vertex (h,k) is (-4,-7).

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