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Lera25 [3.4K]
2 years ago
9

In January the students in a class red 72 books in February they read 56 books what is the approximate percentage decrease in th

e number of books read from January to February
Mathematics
1 answer:
snow_lady [41]2 years ago
5 0

Answer: -12.5%

72 + 56 = 128

72 x / 128 x 100 = 56.25

56 / 128 x 100 = 43.75

43.75 - 56.25 = - 12.5

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The measurement of a central angle is 75. Find the measurement of <br> in radians
Marina CMI [18]
Circumference = 360 degrees 
<span>Circumference = 2π radians (comes from 2*pi*radius) </span>

<span>Therefore </span>
<span>360 deg. = 2*π radians </span>
<span>180 deg. = π radians </span>
<span>1 deg. = (π/180) radians </span>

<span>75 deg. = 75(π/180) radians </span>
<span>75 deg. = 75π / 180 radians </span>
<span>don't bother to try and simplify π (it is an irrational number) </span>
<span>however you can simplify 75/180 </span>
<span>both are divisible by 5 </span>
<span>75π/180 = 15π/36 </span>
<span>both are divisible by 3 </span>
<span>75 deg. = 5π/12 radians </span>

<span>We normally don't bother to go further, unless you actually need it as a decimal fraction (in which case, you will have an approximation) </span>

<span>75 deg. ≈ 1.308997 radians</span>
5 0
3 years ago
The Library is 5 miles from the post office.How many yards is 5 miles
ZanzabumX [31]
8800 yards is equal to five miles
8 0
3 years ago
Read 2 more answers
Worth 30 points so like can someone help me ?
patriot [66]

-2x+c

-2(6/7)+3/8

-12/7+3/8

-46+21/56

25/56

4 0
3 years ago
Read 2 more answers
Need Help ASAP!!
egoroff_w [7]
Bxh

14x15= 210
Hope this help
4 0
3 years ago
|(2+1/3) + 0.3| = 3.5
nignag [31]

Answer:

False

Step-by-step explanation:

l(2+1/3) + 0.3| = 3.5

|7/3+3/10|=7/2

|79/30|=7/2

158=210

false

3 0
2 years ago
Read 2 more answers
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