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bagirrra123 [75]
2 years ago
5

2. Tell whether the ordered pair (-1,-2) is the solution of the system. x + y =

Mathematics
1 answer:
liubo4ka [24]2 years ago
6 0

Answer:

Not the solution tp the system because the ordered pair should be true for both equations. However the last equation is not true.

Step-by-step explanation:

(-1,-2) is the solution of the system. x + y =-3 and 2x - y = -4*

<em />

<em>x + y =-3 :</em>

(-1)+ (-2) = -3

-1-2 =-2   -3=-3

<em />

<em>2x - y = -4:</em>

2(-1)-(-2)=-4

(-2) -(-2)= -4

0=-4

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An angle measures 79.6° less than the measure of its complementary angle. What is the measure of each angle?
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Step-by-step explanation:

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The pollutant PCB (polychlorinated biphenyl) can affect the thickness of pelican eggshells. Thinking of the thickness, T, of the
gayaneshka [121]

Answer:

The expression f(200) depicts the value of the concentration of the pollutant, which when substituted in the expression T = f(P) will give the value of the thickness of the pelican eggs.

Step-by-step explanation:

Since we are given that T = f(P)

Where T = thickness of the eggs

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6 0
3 years ago
12
Sergeu [11.5K]

Answer:

5 pints per hour.

Step-by-step explanation:

Morning:

Given:

Number of strawberries packed in every 4 minutes = 3

∴ Number of strawberries packed in every one minute = \frac{3}{4}

So, number of strawberries packed in every 60 minutes = \frac{3}{4}\times 60=45

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So, strawberries are packed at a rate of 45 pints per hour in the morning.

Afternoon:

Number of strawberries packed in every 3 minutes = 2

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So, number of strawberries packed in every 60 minutes = \frac{2}{3}\times 60=40

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Difference between the packing rates is given as:

Morning rate - Afternoon rate = 45 - 40 = 5 pints per hour.

So, she packed 5 more pints in one hour in the morning than in the afternoon.

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3 years ago
At a sale at an electronics store, a plasma television originally priced at $500 is marked 15% off. What is its selling price.​
Liula [17]

Answer:Selling price is 425

Step-by-step explanation:

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