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Sidana [21]
3 years ago
14

A window washer cleaned 28 windows in 4 hours. At this rate, how many windows did he clean in 9 hours?

Mathematics
1 answer:
myrzilka [38]3 years ago
8 0

Answer:

63

Step-by-step explanation:

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Sean bought 68 3/4 inches of rope . How many 15-inches ropes can he make from it
choli [55]
Length of rope bought by Sean = 68 3/4 inches
                                                   = 275/4 inches
Then
The number of 15 inch rope that can be made by Sean = (275/4)/15
                                                                                         = 275/(4 * 15)
                                                                                         = 275/60
                                                                                         = 4.58
So we can see from the above deduction that Sean can make 4 complete 15 inches ropes and there will be 0.58 inches of rope excess. <span>I hope the procedure and the method of solving is absolutely clear to you. This is the easiest way to get to the solution for such problems.</span>



6 0
3 years ago
Read 2 more answers
Linear Equations In Any Form. Help ASAP Please
Ronch [10]

The answer is y = 3/4 x + 2



<em>Explanation:</em>


Basically, the formula for a linear equation is y = mx + b

b = y-intercept

mx = slope


slope = rise/ run (pos.)

it can also be fall/ crawl (neg.)


In the graph the line meets at the y-int. at 2, the line rises 3 and goes right 4 each time.

8 0
3 years ago
Draw a vector representing the course of a ship that goes 75 miles on a
Nat2105 [25]

Answer:

The answer is below

Step-by-step explanation:

We have a vector with a magnitude of 75 miles and a direction of 300 °.

To draw it, the first thing is to make a Cartesian plane, the first thing is to know in which quadrant it would be, 300 ° is in the fourth quadrant (270 ° - 360 °), that is, it would be 30 ° (300 ° - 270 °) with respect to to the y axis negative.

Knowing this angle, we calculate the value of x and y, knowing that the magnitude of the vector is 75 miles, that is, this value would be the hypotenuse.

The value on the x-axis can be calculated using the sine of the angle, like this:

sin 30 ° = x / 75

x = sin 30 ° * 75

x = 37.5

Now to calculate the value on the y-axis it would be by means of Pythagoras and it would be:

y ^ 2 = 75 ^ 2 - 37.5 ^ 2

y ^ 2 = 4218.75

y = 64.95, -64.95 because it must be located in the fourth quadrant

Which means that to draw the vector that we are asked to do, we must draw a point from origin (0,0) to (37.5, -64.95).

Then I leave a sketch of what it would be:

7 0
3 years ago
For the Pony Ride, the minimum height is 36 inches and the maximum height is 54 inches. Write and solve an absolute value equati
BARSIC [14]

Answer: | x-45 | = 9

8 0
3 years ago
Suppose that X ∼ Geom(p) and Y ∼ Geom(r) are independent. Find the probability P (X &lt; Y ).
Murrr4er [49]

X,Y have joint density

f_{X,Y}(x,y)=f_X(x)f_Y(y)=\begin{cases}pr(1-p)^x(1-r)^y&\text{for }x\ge0,y\ge0\\0&\text{otherwise}\end{cases}

We can find P(X by integrating the joint density over the region in \Bbb R^2 where x in the first quadrant, i.e. above the line y=x:P(X

using the fact that

a^n=e^{n\ln a}\implies\displaystyle\int a^n\,\mathrm dn=\frac1{\ln a}e^{n\ln a}+C=\frac1{\ln a}a^n+C

Then using the same property,

P(X

4 0
3 years ago
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