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HACTEHA [7]
3 years ago
7

QUICK PLEASE The school library is planning to purchase new bookshelves. If they calculated that each bookshelf can hold 75 book

s and the library has 350 books already, write an equation to represent the number of books the library will have if they buy n bookshelves.
Mathematics
1 answer:
podryga [215]3 years ago
8 0

Answer:

75 divided by 350

Step-by-step explanation:

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The ages of two brothers are in the ratio two to three, but in eight years, the ratio of their ages will be three to four. What
Darina [25.2K]
X = older brother
y = younger brother 

Equation 1: x/y = 2/3 ⇒ x = 2y/3
Equation 2: x + 8/y + 8 = 3/4

( \frac{2y}{3} + 8) / y +8 =  \frac{3}{4}
(2y + 24)/3 = y + 8 =  \frac{3}{4}
2y + 24 = 3 (y + 8) =  \frac{3}{4}
2y + 24 = 3y + 24 =  \frac{3}{4}
4 (2y + 24) = 3 (3y + 24)
8y + 96 = 9y + 72
y = 24

The age of the older brother is 24.

x =  \frac{2y}{3} = \frac{2*24}{3}
x =  \frac{48}{3}
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The age of the youngest brother is 16.
5 0
3 years ago
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Use the commutative property to simplify the expression 4/3 + 3/4 + 2/3
saw5 [17]

The simplified expression using  the commutative property is : \frac{6}{3} + \frac{3}{4}

<h3>Meaning of commutative property</h3>

commutative property can be defined as a mathematics attribute that is possessed by a mathematical equation, that enables the objects undergoing addition or multiplication to change position.

In conclusion, The simplified expression using  the commutative property is : \frac{6}{3} + \frac{3}{4}

<h3>Analysis</h3>

4/3 + 3/4 + 2/3 =  ( \frac{4}{3} +  \frac{2}{3} ) +  \frac{3}{4}  =   \frac{6}{3} + \frac{3}{4}

Learn more about commutative property: brainly.com/question/1528288

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2 years ago
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the answer is D-n is greater then or equal to nine.

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3 years ago
The x-intercepts of a quadratic function are −3 and 5. What is the equation of its axis of symmetry?
Reil [10]

Answer:

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Step-by-step explanation:

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Select the correct answer from each drop-down menu.
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