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3 years ago

-2m + 4m + 5 = -3 Tell me what you did please!

2 answers:

3 0

$-2m+4m+5=-3 \ \ \ |\hbox{substraction 2m from 4m} \\
2m+5=-3 \ \ \ |\hbox{substraction 5 from both sides}\\
2m+5-5=-3-5 \\
2m=-8 \ \ \ |\hbox{division by 2} \\
m=-4$

Nata [24]3 years ago

3 0

I haven't done anything yet.
Here's what you <em>could</em> do with it:

-- Combine the -2m and the 4m on the left side. Together, they make 2m .

Now the equation is: 2m + 5 = -3

Subtract 5 from each side: 2m = -8

Divide each side by 2 : <em> m = -4</em>

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3 years ago

If three pears and four oranges cost $4.85 and three pears and ten oranges cost $8.75 what is the cost of a pear and an orange

marishachu [46]

Answer:

1 pear = $0.75; 1 orange = $0.65

Step-by-step explanation:

(1) 3P + 4O = 4.85

(2) 3P + 10O = 8.75 Eqn (2) - Eqn (1)

3P + 10O – 3P – 4O = 8.75 – 4.85 Combine like terms

6O = 3.90 Divide each side by 6

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3 years ago

Can you draw an equiangular polygon that is not equilateral? Explain.

Maksim231197 [3]

Answer:

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Step-by-step explanation:

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3 years ago

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Reil [10]

Answer:

A =42 in^2

Step-by-step explanation:

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3 years ago

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Vlada [557]

Answer:

5981.25 m²

Step-by-step explanation:

1. Divide the court into two sections. One section being the semicircle, the other being the rectangle.

2. Multiply 100 by 50 to get the area of the rectangle, which is 5000.

3. Divide 50 by 2 to get the radius of the semicircle, which is 25.

4. Find the formula used for area of a semicircle A = $\frac{1}{2}$ $\pi$ r²

5. Insert 25 into where the "r" is in the equation: A = $\frac{1}{2}$ $\pi$ (25²), resulting in about 981.25. (I replaced $\pi$ with 3.14)

6. Add the area of the rectangle with the area of the semicircle, 5000 + 981.25 = 5981.25.

7. The final answer is 5981.25 m².

6 0

3 years ago