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mina [271]
3 years ago
11

What is the value of the expression [-8/9]divide by [-2/3]x[-4 1/2]

Mathematics
1 answer:
Sidana [21]3 years ago
5 0

Answer:

-82/3

Step-by-step explanation:

first divide -8/9 by -2/3

-8/9 ➗ -2/3 =-8/9*3/-2 =4/3

multiply 4/3 by -41/2

4/3*-41/2 = -82/3

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Find the angle between the hands of a clock at 5:15<br><br> A 60<br> B 67.5<br> C 75
Viktor [21]

Answer:

Option B is correct.

67.5 degree

Step-by-step explanation:

To find the angle between the hands of a clock.

Given that:

Hands of a clock at 5 : 15.

We know that:

A clock is a circle and it always contains 360 degree.

Since, there are 60 minutes on a clock.

\frac{360^{\circ}}{60 minutes} = 6^{\circ} per minutes

so,  each minute is 6 degree.

The minutes hand on the clock will point at 15 minute,

then, its position on the clock is:

(15) \cdot 6^{\circ} = 90^{\circ}

Also, there are 12 hours on the clock

⇒Each hour is 30 degree.

Now, can calculate where the hour hand at 5:00 clock.

⇒5 \cdot 30 =150^{\circ}

Since, the hours hand is between 5 and 6 and we are looking for 5:15 then :

15 minutes is equal to \frac{1}{4} of an hour

⇒150+\frac{1}{4}(30) = 150+7.5 = 157.5^{\circ}

Then the angle between two hands of clock:

⇒\theta = 150.75 -90 = 67.5^{\circ}

Therefore, the angle between the hands of a clock at 5: 15 is: 67.5 degree.

4 0
2 years ago
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There are 5 times as many yellow labs as terriers in the dog park. if there are a total of 18 dogs, how many dogs are terriers?
gtnhenbr [62]
Terriers = x
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x = 3
There are 3 Terriers
3 0
3 years ago
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A teacher keeps track of how many books are read by students in each class. Which grade has read has read a higher rate hook per
12345 [234]
For the answer to the question above asking h<span>ow many more book does the other grade need to read to have the same rate?
I think the answer here is </span>the 7 grader needs to read 94 more books in order to catch up with 6 grade.
6 0
3 years ago
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Questions eleven all the way to twenty
Margarita [4]
11=27
12=27
13=4
14=16
15=24
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6 0
3 years ago
Please Help Me!
melisa1 [442]

Answer: B or 52

Step-by-step explanation: I will explain later

6 0
2 years ago
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