/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 51 Simplify. $$ \frac{7000+(-10... [FREE SOLUTION] | 91Ó°ÊÓ

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Simplify. $$ \frac{7000+(-10)^{3}}{10^{2} \cdot(2+4)} $$

Short Answer

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Step by step solution

01

Simplify the numerator

First, simplify the expression in the numerator. The numerator is given as \(7000 + (-10)^3\). Calculate \((-10)^3\) which is equal to \(-1000\). So, the numerator becomes \(7000 + (-1000)\), which simplifies to \(6000\).
02

Simplify the denominator

Next, simplify the expression in the denominator. The denominator is given as \(10^2 \cdot (2+4)\). Calculate \(10^2\) which is \(100\) and \(2+4\) which is \(6\). Therefore, the denominator is \(100 \cdot 6 = 600\).
03

Divide the simplified numerator by the simplified denominator

Now, divide the simplified numerator by the simplified denominator: \(\frac{6000}{600}\). This simplifies to \(10\).

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Numerator
The numerator is the top part of a fraction. In the problem above, the numerator is given as \(7000 + (-10)^3\). To solve it, you first need to calculate \((-10)^3\). Since multiplying three negative numbers results in a negative number, \((-10)^3 = -1000\). So, the numerator becomes \(7000 + (-1000) = 6000\). This means we have successfully simplified the numerator to 6000.
Denominator
The denominator is the bottom part of a fraction. In this problem, the denominator is \(10^2 \cdot (2+4)\). First, calculate \(10^2\). Raising 10 to the power of 2 (or squaring it) means multiplying 10 by itself: \(10^2 = 100\). Next, calculate \(2+4\). The sum is 6. Finally, multiply the two results: \(100 \cdot 6 = 600\). So, the simplified denominator is 600.
Exponents
Exponents are used to represent repeated multiplication of a number by itself. In the numerator, we see \((-10)^3\). This means we multiply -10 by itself three times: \((-10) \times (-10) \times (-10) = -1000\). In the denominator, we have \(10^2\), which means 10 multiplied by itself: \(10 \times 10 = 100\). Understanding exponents helps simplify numerical expressions significantly.
Arithmetic Operations
Simplifying algebraic expressions often involves several arithmetic operations: Addition, subtraction, multiplication, and division. In the example problem, we:
  • Calculated the power of numbers (exponents).
  • Added and subtracted numbers in the numerator, \( 7000 + (-1000) = 6000 \).
  • Performed addition inside the parentheses in the denominator, \( 2+4=6 \).
  • Multiplied results to get the simplified denominator, \( 10^2 \cdot 6 = 600 \).
  • Finally, divided the numerator by the denominator, giving us the simple result, \( 6000 / 600 = 10 \).
Grasping these operations is essential when solving complex algebraic expressions.

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