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Oliga [24]
3 years ago
13

. Ms. Latona can grade 30 assignments in 45 minutes. Mr. Wilburn can grade 45 assignments in 60 minutes. Who grades assignments

faster? USE UNIT RATE AND RATIOS TO EXPLAIN.
Mathematics
1 answer:
MatroZZZ [7]3 years ago
5 0

Answer:

Mr Wilburn

Step-by-step explanation:

Ms L = 30/45 = 0.67 assignments per minute

Mr W = 45/60 = 0.75 assignments per minute

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Chris is standing due south of a 20m flagpole at a point where the angle of elevation of the top of the pole is 35. Brandyn is s
Airida [17]

Answer:

Brandyn is 41.48m from Chris

Step-by-step explanation:

I have drawn an image depicting this question and I've attached it.

From the diagram, chris is standing at point B while Brandyn is at point D. x is the distance of brandyn to the bottom of the pole.

The height of the pole is AC.

Now, by trigonometric ratio, we can find AC. Thus;

AC/20 = tan 35

AC = 20 tan 35

AC = 14

Since,we now have AC, we can find x.

Similarly, 14/x = tan 27

x = 14 / tan 27

x = 27.48 m

Thus, total distance of brandyn from Chris = 14 + 27.48 = 41.48 m

7 0
3 years ago
A. 8pi<br><br> B. pi<br><br> C. 2pi<br><br> D. 4pi
mestny [16]

Answer: Option C

AC = 2\pi

Step-by-step explanation:

The arc length is calculated as

L = \theta * R

Then

AC = \theta * R

We know that

BC = 24\ ft

If BC is the diameter of the circumference then the radius R is:

R = \frac{BC}{2}

R = \frac{24}{2}

R = 12\ ft

Now we convert the anglo from degrees to radians\theta= 30\° * \frac{\pi}{180\°}\\\\\theta=\frac{1}{6}\pi

Finally

AC = \frac{1}{6}\pi * 12

AC = 2\pi

7 0
3 years ago
Read 2 more answers
Evaluate:<br> 21°(3n + 7) = [?]
Basile [38]
21(3n+7)=?
(63n+147)=? After multiplying
63/147=2.33333. After dividing 147/63 plz let me know if I’m wrong.

Answer: 21(3n+7)=2.33333
5 0
3 years ago
27 - 3/2 of a number X is not more than 36 what is the number
gizmo_the_mogwai [7]

Answer:

27 - 1.5x ≤ 36

54 - 3x ≤ 72

54 - 72 ≤3x

-18 ≤ 3x

-6 ≤ x

x ≥ -6

Step-by-step explanation: ''sorry if wrong''

7 0
3 years ago
What is −2x3−6x+4 divided by x+1?
stepladder [879]

Answer:

-( 2x^2+6-4/x)

that what i got when you divide

6 0
2 years ago
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