4 years ago

Which expression is represented by the model below

Mathematics

1 answer:

EastWind [94]4 years ago

8 0

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Monica [59]

Answer: C, 420

Step-by-step explanation:

The first positive even numbers are from 2 to 40, so the sum is equal to the number of terms, times the number of terms plus one (20*21 = 420)

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Solve the system of equations below.<br> x + y = 5<br> -4x – 2y = -8

mel-nik [20]

Answer:

x = -1 , y = 6

or (-1, 6)

Step-by-step explanation:

First solve for "y" in the second equation:

$-4x-2y=-8\\-4x+8=2y\\y=-2x+4$

and now, use this result as a substitution for "y" in terms of "x" in the first equation:

$x+y=5\\x+(-2x+4)=5\\x-2x+4=5\\-x=5-4\\-x=1\\x=-1$

Knowing the value of "x", now we place it in the substitution equation to find "y":

$y=-2x+4\\y=-2(-1)+4\\y=6\\$

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3 years ago

When opening a bank checking account, A) a signature card indicates to whom money is to be paid. B) is attached to all pre-print

beks73 [17]

Answer:

I think the answer is "C" in my opinion

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3 years ago

Whole number are ____ integers

Simora [160]

Answer:

Whole number are always going to be integers.

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