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densk [106]
3 years ago
9

In January, Mr Tan's students read 20 books. In Febuary, they read 15 books. What is the percent increase or decrease in the num

ber of books they read?
A. 5% decrease
B. 15% increase
C. 25% increase
D. 25% decrease​
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
8 0
25% decrease because if you multiply 20x.25 you get 5 and you minus the 5 from 20 books and you get 15 books
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(6x+2.4):3 /59=2.25:1/3 find x<br> hurry plz
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Solution of (6x + 2.4): 3 ⁵/₉ = 2.25 : ¹/₃ is 3.6

Further explanation

Order of Operations in Mathematics follow the following rule :

Parentheses

Exponents

Multiplication and Division

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This rule is known as the PEMDAS method.

In working on a mathematical problem, we first calculate an operation that is in parentheses, followed by exponentiation, then multiplication or division, and finally addition or subtraction.

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Zane needs 20 yards of fencing to go around his rectangular yard. What are possible dimensions for Zane's yard? Select all that
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Answer:

1 yard by 9 yards

2 yards by 8 yards

3 yards by 7 yards

4 yards by 6 yards

Step-by-step explanation:

the perimeter of the rectangular yard needs to be 20 yards

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20 = 2 x ( length + width)

( length + width) = 20 /2

( length + width) = 10

The sum of the length and width should equal 10

Possible dimensions that would equal 10 are :

1 yard by 9 yards

2 yards by 8 yards

3 yards by 7 yards

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In the diagram, which two angles are corresponding angles with angle 12?
Rama09 [41]

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Step-by-step explanation:

6 0
3 years ago
How do I find x on the attached right triangle<br> ?
ioda

The value of x from the given triangle is 32√3/3

<h3>SOH CAH TOA identity</h3>

In order to determine the value of x, first we need to determine the hypotenuse side of the smaller triangle.

sin 60 = 8√2/H

H = 8√2/sin60

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Learn more on SOH CAH TOA here: brainly.com/question/20734777

#SPJ1

4 0
2 years ago
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