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3 years ago

3x add 5y takeaway x add 2y answer

Mathematics

1 answer:

Vinil7 [7]3 years ago

3 0

Answer:

2x +7y

Step-by-step explanation:

3x + 5y - x + 2y

2x + 5y + 2y

2x + 7y

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A cube has six congruent faces that are all

erica [24]

Well you could just say that they have 6 congruent faces that have all the same measurements, as well as the same surface area.

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3 years ago

Cup o’ Coffee buys its coffee for $1.25 a cup. The coffee shop then sells each cup for $3.75. What is the percent markup for a c

Fantom [35]

Answer:

47%

Step-by-step explanation:

.375 × .125 = .046875

rounding up, 5 keeps the 7 as is, 7 is greater than 5, therefore the 8, becomes a 9, 9 is greater than 5, so the 6 becomes a 7, .047.

move the decimal three digits to the left and you get, 47%.

Hope this helps brainlest? please

3 0

3 years ago

Which equation has solution x = -3?

Tema [17]

Hello there.

<span>Which equation has solution x = -3?

</span> $\frac{1}{2} (2x - 6) = -6?$

3 0

3 years ago

HELP ME PLEASEE

babymother [125]

From the given discrete distribution, we have that:

$\mu = 2.13, \sigma^2 = 0.61, \sigma = 0.78$

<h3>What are the mean, the variance and the standard deviation of a discrete distribution?</h3>

The mean of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.

The variance is given by the sum of the difference squared between each observation and the mean, divided by the number of values.

The standard deviation is the square root of the variance.

In this problem, the distribution is:

$P(X = 1) = \frac{2}{8}$

$P(X = 2) = \frac{3}{8}$

$P(X = 3) = \frac{3}{8}$

Hence, the mean is:

$\mu = 1\frac{2}{8} + 2\frac{3}{8} + 3\frac{3}{8} = \frac{17}{8} = 2.13$

The variance is:

$\sigma^2 = (1-2.13)^2\frac{2}{8} + (2-2.13)^2\frac{3}{8} + (3-2.13)^2\frac{3}{8} = 0.61$

The standard deviation is:

$\sigma = \sqrt{0.61} = 0.78$

More can be learned about discrete distributions at brainly.com/question/24855677

4 0

2 years ago

Use the given conditions to write an equation for the line in point-slope form and general form. Passing through (−8,3) and par

Olenka [21]

PSF: y - y₁ = m(x - x₁)
Standard Form: ax + by = c

Point Slope Form Standard Form

1). y - 3 = -4(x + 8) 2). y = -4x - 29
y - 3 = -4x - 32 + 4x + 4x
+ 3 + 3 ---------------------------------
----------------------------- 4x + y = -29
y = =4x - 29

5 0

4 years ago