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3 years ago

Answer choices below: A. -2 B. -3 C. 16 D. 0

Mathematics

1 answer:

Sloan [31]3 years ago

7 0

A.-2 opposite
To positive 2

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Is the point (3, -2) a solution to the following system of equations? How do you know?

iris [78.8K]

Answer:

YES

Step-by-step explanation:

Any straight line can be represented by an equation of the form

Y = mX + b

where m is the slope and b is the Y intercept, so these two equations are lines. The only solution is where the two lines cross, so must satisfy both equations. Plugging in 3 for X and -2 for Y we get

Y = -3X + 7

-2 = -3(3) + 7

-2 = -9 + 7

-2 = -2 True

AND,

Y = 2X - 8

-2 = 2(3) - 8

-2 = 6 - 8

-2 = -2 True

So since both are true, yes (3, -2) is the solution.

3 0

3 years ago

Three people invest in a treasure dive, each investing the amount listed below. The dive results in 40 gold coins. Apportion tho

garri49 [273]

Answer:

Alice: 20 coins, Ben: 16 coins, and Carlos: 4 coins.

Step-by-step explanation:

We know that the dive results in 40 gold coins.

We know that:

Alice: $7,600 Ben: $5,900 Carlos: $1,400.

So they have $ 14900 in total.

Now we will divide that money by 40.

$x=\frac{14900}{40}\\\\x=372.5$

So 1 gold coin costs $ 372.5. Now we will calculate how much they can get for the money they have.

$A=\frac{7600}{372.5}=20.4\\\\B=\frac{5900}{372.5}=15.8\\\\C=\frac{1400}{372.5}=3.75\\$

We conclude that:

Alice: 20 coins, Ben: 16 coins, and Carlos: 4 coins.

6 0

3 years ago

55% of 387 is what number?

yarga [219]

Answer:

212.85

Step-by-step explanation:

55% = $\frac{55}{100}$ = 0.55

55% of 387 = 0.55 × 387 = 212.85

6 0

3 years ago

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Equation?

GarryVolchara [31]

25-5x=5(-x+5)
25-5x=-5x+25
-5x+5x= 25-25
0=0

So the answer will be A: there is no solution

3 0

3 years ago

Complete this sentence 10x^3a+6xa^2=2xa(______)

alexira [117]

Answer: 5x² + 3a

Explanation:
$10x^3a+6xa^2=2xa(5x^2 + 3a)$

3 0

3 years ago

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