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3 years ago

Is (0, 3) a solution to the following system?

Mathematics

1 answer:

daser333 [38]3 years ago

6 0

Solve each equation with (0, 3)

y = -x + 3

3 = -0 + 3

y = 3 (correct since y = 3 in (0, 3))

y = 2x - 3

3 = 2(0) - 3

3 = 0 - 3

3 = -3 (incorrect since it isn't equal)

So... No, because it does not check in the second equation.

Best of Luck!

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Alan rolls two number cubes. What is the probability that the sum of the two numbers will equal 9?

Ivahew [28]

The answer is 2/15 because it can either be 4 and 5 or 3 and 6

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3 years ago

jobs gross pay is $400, from which $24.80 deducted for OASDI, $5.20 for Medicare, and $45 for income tax. what is her net pay? A

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3 years ago

Read 2 more answers

Randy ran 13/4 miles on Monday and 2 2/4 miles on Tuesday. How far did<br> Randy run on both days?

Pachacha [2.7K]

Answer:

The answer is 5 3/4

Step-by-step explanation:

13/4 = 3 1/4

3 1/4 + 2 2/4 = 5 3/4

Hope this helped you!

3 0

2 years ago

Can someone show me how to do Mean absolute deviation

morpeh [17]

To find the mean of a set, add up all of the numbers and divide by how many numbers you have. For the first set:
$\mu=\frac{10.7+2.4}2=\frac{13.1}2=6.55$
For the second set:
$\mu=\frac{13.7+2.5}2=\frac{16.2}2=8.1$

To find the mean absolute deviation, (MAD) find the mean of the distances of each number from the mean.
For the first set:
$MAD=\frac{|10.7-6.55|+|2.4-6.55|}2=\frac{4.15+4.15}2=\frac{8.3}2=4.15$
For the second set:
$MAD=\frac{|13.7-8.1|+|2.5-8.1|}2=\frac{5.6+5.6}2=\frac{11.2}2=5.6$
Note that when you only have two data points the mean is directly between them, which is why the distances are the same.

The means-to-MAD ratio is simply that, divide one by the other and that's it.
For the first set:
$6.55\div4.15=1.57831325$
For the second set:
$8.1\div5.6=1.44642857$

5 0

3 years ago

There are five nickels, five dimes and five quarters in your pocket. You randomly pick three coins and place them on the counter

Goshia [24]

Answer:

The question is incomplete, this is the complete question.;

There are five nickels, five dimes and five quarters in your pocket. You randomly pick three coins and place them on the counter the first coin is a nickel, the second is a dime and the third is a quarter.find the probability of this occurring.

The answer to the question is;

the probability of this occurring is 1/27

Step-by-step explanation:

Let n(N) =5 ( the number of nickels)

n(D) =5 ( the number of dimes) and

n(Q) = 5 ( the number of quarters)

P(N)= 5/15=1/3 (prob of picking a nickel)

P(D) =5/15=1/3 (prob of picking a dime)

P(Q) = 5/15= 1/3 (prob of picking a quatre)

The probability of picking the three= P(N)×P(D)×P(Q)

= 1/3×1/3×1/3

= 1/27

7 0

3 years ago