3 years ago

Solve the system of linear equations by elimination −2x+3y=7 and 5x+8y=−2

1 answer:

4 0

You would need to make them eliminate so I would multiply the entire first one by 2.5 to make the X's cancel out. So you would end up with -5X+7.5Y=17.5. The X's would cancel and you would be left with 15.5Y=15.5. So Y=1. Then replace Y into one of the equations. I'm going to use the top again. -2X+3(1)=7. Subtract 3 from both sides to get -2x=4. Divide both sides by negative 2 to get X=-2. So the solution would be (-2,1)

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MissTica

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24.2 years

Step-by-step explanation:

The basic formula is I = P * i * t, where I is interest, P is total principal (or profit), i is rate of interest per year, and t is total time in years. I = P * i * t can be rearranged to solve for t: t = I / (i * p).

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4 years ago

- If the area of a square is multiplied by nine, the area becomes 16 square inches. Find the

mojhsa [17]

Answer:

1⅓ inches

Step-by-step explanation:

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3 years ago

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fenix001 [56]

Answer:

108 deg

Step-by-step explanation:

Since sides DB and CD are congruent, then opposite angles are congruent.

m<C = m<B = 36

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3 years ago