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Ainat [17]
3 years ago
9

Is (2, 1) a solution to this system of equations? 4x + 12y = 20 x + y = 3 yes no

Mathematics
2 answers:
dedylja [7]3 years ago
8 0

Answer:

yes

I hope to help you

my dear

Amanda [17]3 years ago
6 0

Answer:

no

Step-by-step explanation:

4(2)+12(1)=20

8 + 12 =20

20 = 20

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On average, Stan drinks 3/4 of a 8 ounce glass of water in 1/2 of an hour.
sweet [91]
<h3>Stan drinks 12 ounces of water in 1 hour</h3>

<em><u>Solution:</u></em>

Given that,

Stan drinks 3/4 of a 8 ounce glass of water in 1/2 of an hour

Which means,

\frac{3}{4}\ of\ 8\ ounce = \frac{1}{2}\ hour

\frac{3}{4} \times 8 = 0.5\ hour\\

Therefore,

6 ounces is drank in 0.5 hour

We have to find the water he drinks in an hour

Let "x" be the water he drinks in 1 hour

Thus we get,

6 ounce = 0.5 hour

x ounces = 1 hour

This forms a proportion and we can solve the sum by cross multiplying

6 \times 1 = 0.5 \times x\\\\0.5x = 6\\\\x = \frac{6}{0.5}\\\\x = 12

Thus, he drinks 12 ounces of water in 1 hour

5 0
3 years ago
How can you find a unit rate when given a rate?
ivanzaharov [21]
It depends on the problem really. One example is that you drive 10 miles in 2 hours. So you divide the distance over time to get 10/2 = 5. This means you drove 5 miles per hour (mph). The unit rate for this example is 5 mph.
7 0
3 years ago
3x=15-6y in slope intercept form
sdas [7]

Answer:  y= -1/2x + 5/2

Step-by-step explanation:

3x = 15 -6y

+6y       + 6y

3x +6y =15

-3x           -3x

6y= 15-3x   divide both sides by 6

y= 15/6 - 3/6x

in slope intercept form us y= -3/6x + 15/6  in simplest form is y= -1/2x + 5/2

3 0
4 years ago
1. The total area within any continuous probability distribution is equal to 1.00.
olchik [2.2K]

Answer:

1. True

2. False.

3. True.

Step-by-step explanation:

1. The total area within any continuous probability distribution is equal to 1.00: it is true because the maximum probability (value) is one (1), therefore, the total (maximum) area is also one (1).

<em>Hence, for continuous probability distribution: probability = area</em>.

2. For any continuous probability distribution, the probability, P(x), of any value of the random variable, X, can be computed: False because it has an infinite number of possible values, which can not be counted or uncountable.

<em>Hence, it cannot be computed. </em>

3. For any discrete probability distribution, the probability, P(x), of any value of the random variable, X, can be computed: True because it has a finite number of possible values, which are countable or can be counted.

<em>Hence, it can be computed. </em>

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4 years ago
Triangle Congruence:
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Where are the triangles so I can compare to find the triangle congruence?
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