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3 years ago

2) PLEASE HELP WITH QUESTION, MARKING BRAINLIEST + POINTS GIVEN.

Mathematics

2 answers:

Sedaia [141]3 years ago

8 0

The answer is C and can anyone answer my mot recent question

Montano1993 [528]3 years ago

5 0

Your answer is C hope this helps :)

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It takes 32 minutes for 3 people to paint 4 walls. How many minutes does it take 4 people to paint 7 walls?

vampirchik [111]

Answer:

Step-by-step explanation:

Assuming each person gets the same amount of work done, each wall in the first scenario takes 8 minutes to paint. If 3 people paint 4 walls, then each person is painting 1 1/3 of a wall. We can use that to find out how long it takes one person to paint 1 1/3 walls:

$\frac{8min}{wall}*\frac{4}{3}walls=\frac{32}{3}min$ . Interpreting that, it takes each person 10 2/3 minutes to paint 1 1/3 walls.

If 4 people paint 7 walls, that means that each person is painting 7/4 walls, or 1.75 walls each. Using the fact that it takes 10.66666 minutes to paint 1.33333 walls, we can find out how many minutes it will take to paint 1.75 walls:

$\frac{10.6666}{1.33333}=\frac{x}{1.75}$ Cross multiply to get

18.666655 = 1.3333x so

x = 14.000 minutes

6 0

4 years ago

10% of 40.5 is what number?

Ray Of Light [21]

Answer:

4.05

Step-by-step explanation:

Hope it helped

8 0

4 years ago

Read 2 more answers

Find the slope of the line passing theoufh the points (4,-7) and (-8,3)

Savatey [412]

The slope is -5/6

$\frac{-5}{6}$

6 0

3 years ago

Find the slope using the formula. (3,-2) and (3, 6)

dangina [55]

Answer:

m = undef

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (3, -2)

Point (3, 6)

Step 2: Find slope m

Substitute: $m=\frac{6+2}{3-3}$
Add/Subtract: $m=\frac{8}{0}$
Divide: m = undef

When we divide anything by zero, we will get undefined. Therefore, this would be a vertical line.

6 0

3 years ago

Draw the graph of the equation x − y = 4

timurjin [86]

Answer:

We have the equation:

x - y = 4

We can write this as a linear equation in the slope-intercept form if we isolate the variable y.

We get:

y = x - 4

Now to graph this function, we need to evaluate x in two different points and get two points (x, y) of the line.

If we use x = 1 and x = 2, then we get:

y(1) = 1 - 4 = - 3

Then we have the point (1, -3)

and:

y(2) = 2 - 4 = - 2

Then we have the point (2, - 4)

Now we need to draw these two points in the coordinate axis, and draw a line that connects the points, the example can be seen in the image below.

a) To use the graph, we need to locate the value x= 7 in the x-axis.

Then draw a vertical line

In the point where the vertical line intersects the graph, we draw an horizontal line.

The y-value will be the value at which this horizontal line intersects the y-axis

In this case, is at y = 3.

Then when x = 7, y = 3.

(you can see it in the graph)

ii) The coordinate at which the graph intersects the x-axis can be seen in the graph, it is the point (0, 4)

3 0

3 years ago