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3 years ago

Please help 5x + 3y = 9 in general form.

Mathematics

2 answers:

coldgirl [10]3 years ago

6 0

jqz-ptqn-jvf

join for your answer and ask

lord [1]3 years ago

5 0

The x and y intercepts is x intercept =(9/5, 0)
Y intercept =(0,3)

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Sum of 2 numbers is 36. The larger is 3 more than twice the

maw [93]

Answer:

Step-by-step explanation:

so we just make a system of equations:

x+y=36

say that x is the larger and y is the smaller

x-3=2y

so we can combine the equations and solve for x and y

re-arrange x-3=2y to be x=2y+3

x+y=36

x=2y+3

insert the value for x into x into x+y=36

2y+3+y=36

3y+3=36

y=11

now insert that back into x+y=36

11+x=36

x=25

Out of the two numbers x and y, 11 is the smaller number

Hope that helps :)

6 0

2 years ago

10 + x + 5x²-x- 3 +5x Which is the simplified expression found by combining like terms?

zlopas [31]

The answer is 5x^2 + 5x + 7

6 0

3 years ago

Read 2 more answers

How many degrees does the earth revolve on its axis each hour? How many radians?

mestny [16]

Answer:

The earth will revolve 15° and 0.0833 radian in 1 hour

Step-by-step explanation:

We know that earth revolve one round on its axis 24 hour

We know that 1 round = 360°

So earth will revolve 360° in 24 hour

So earth will revolve $\frac{360}{24}=15^{\circ}$ in 1 hour

Now we have to find the revolution in radian

So $15^{\circ}=15\times \frac{\pi }{180}=0.0833\pi$

3 0

3 years ago

What are the common multiples of 2 3 and 5

LUCKY_DIMON [66]

Los multiplos de 2 es 2,4 ,6,8,10,12,14, etc Del 3: 3,6,9,12,15,18,21,24,27,30,etc Del 5: 5,10,15,20,25,30,35,40,etc

3 0

3 years ago

1. The data given below includes data from 42 candies, and 7 of them are red. The company that makes the candy claims that 33%

jeyben [28]

Answer:

The 95% confidence interval for true proportion of red candies is (5%, 27%).

The true proportion of red candies made by the company is different from 33%.

Step-by-step explanation:

The hypothesis to determine whether the claim made by the candy company is correct or not is:

H₀: The true proportion of red candies made by the company is 33%, i.e. p = 0.33.

Hₐ: The true proportion of red candies made by the company is different from 33%, i.e. p ≠ 0.33.

A (1 - α)% confidence interval can be constructed to check this claim.

The decision rule is:

If the confidence interval consists the null value then the null hypothesis will not be rejected. Otherwise it will be rejected.

The (1 - α)% confidence interval for population proportion is:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

The information provided is:

n = 42

X = number of red candies = 7

Compute the sample proportion of candies that are red as follows:

$\hat p=\frac{X}{n}=\frac{7}{42}=0.167$

The critical value of z for 95% confidence level is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

*Use a z-table for the critical value.

Compute the 95% confidence interval for true proportion of red candies as follows:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\=0.167\pm 1.96\times \sqrt{\frac{0.167(1-0.167)}{42}}\\=0.16\pm0.1137\\=(0.0463, 0.2737)\\\approx(0.05, 0.27)$

The 95% confidence interval for true proportion of red candies is (5%, 27%).

The confidence interval does not contains the null value.

Thus, the null hypothesis will be rejected at 5% level of significance.

Conclusion:

The true proportion of red candies made by the company is different from 33%.

7 0

2 years ago