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2 years ago

Marsha uses 8.5 pints of white paint and blue paint to paint her bedroom walls. 2/5

Mathematics

1 answer:

Serjik [45]2 years ago

6 0

Answer:

5.1 pints

Step-by-step explanation:

Theres 2 ways

First way:

We can do 2/5 of 8.5 which is 3.4. Then, we can subtract 3.4 from 8.5 and get 5.1 pints.

Second way:

We can simply do 3/5 of 8.5 because the remaining 3/5 of the paint is blue. 3/5 of 8.5 is 5.1 pints

Hope this helped! I would appreciate a Brainliest if this helped you!

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Juan's cell phone company charges $35 a month for phone service plus $0.50 for each text message. How many text messages does ju

ExtremeBDS [4]

Step-by-step explanation:

The minimum charges for the phone service is $35. For, each text message, $0.50 is charged over and above the minimum charges.

This problem can be modeled as a linear equation in the number of text messages sent as follows: $\textrm{Total bill = Minimum charges + (Charge per message)x(Number of messages)}$

$\textrm{Total Bill = $}35\textrm{ + (Number of messages)x}($0.50)$

Given that the total bill is $52, number of text messages can be easily computed.

$52\textrm{ = }35+\textrm{(Number of messages)x}0.50$

$\textrm{(Number of messages)x0.50 = }52-35=7$

$\textrm{Number of messages = }\frac{7}{0.5}=14$

∴Number of text messages Juan sent = 14.

5 0

3 years ago

Which statement is not correct?

ElenaW [278]

Heteroscedastic residuals will have roughly the same variance for any value of X. Hence:

The correct option is C.

Hetero means that they are different/vary. Homoscedastic would mean that they do not change as the value of x changes.

When the variance of the residuals is uneven throughout a range of measured values, this is referred to as heteroskedasticity. The analysis results may be flawed if heteroskedasticity is present and the population employed in the regression has unequal variance.

One presumption regarding the residuals/errors in OLS regression is that they have the same, but unmeasured, variance. The term "constant variance" or "homoscedasticity" refers to this. Heteroscedasticity is the issue when this presumption is broken.

Hence we get the required answer.

Learn more about Homoscedastic here:

brainly.com/question/14974535

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7 0

2 years ago

Given the points K(-2;5), L(1,3) and M(-5; 2p). Calculate the value

Advocard [28]

The product of the perpendicular lines is a negative one. Then the value of p will be negative 3.75.

<h3>What is coordinate geometry?</h3>

Coordinate geometry is the study of geometry using the points in space. Using this, it is possible to find the distance between the points, the dividing line is m:n ratio, finding the mid-point of the line, etc.

Given the points K(-2,5), L(1,3) and M(-5, 2p).

If KL is perpendicular to LM. Then we have

The slope of KL will be

KL = (1+2)/(3-5)

KL = -1.5

The slope of LM will be

LM = (1+6)/(3-2p)

LM = 7/(3-2p)

We know the product of the perpendicular lines is a negative one.

KL x ML = -1

-1.5 x 7/(3-2p) = -1

-10.5 = -3 + 2p

2p = -7.5

p = -3.75

More about the coordinate geometry link is given below.

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4 0

2 years ago

Question 24

Liula [17]

Is there a photo? Or anything

3 0

3 years ago

Which of the following descriptions represents the transformation shown in the image

Viktor [21]

Answer: A. 270° rotation, 3 units left, and 2 units up

<u>Step-by-step explanation:</u>

C = (1, 1) D = (3, 3) E = (2, -2)

270° rotation counterclockwise means (x, y) = (y, -x)

new C = (1, -1) new D = (3, -3) new E = (-2, -2)

3 units left means subtract 3 from the x-coordinate

newer C =( -2, -1) newer D = (0, -3) newer E = (-5, -2)

2 units up means add 2 to the y-coordinate

C' = (-2, 1) D' = (0, -1) E' = (-5, 0)

Since the first option worked, there is no need to check the other options.

7 0

3 years ago

Read 2 more answers