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🧮 algebra

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Subtract Negative
1. **State the problem:** We need to subtract $-25$ from $-18$, which means calculating $-18 - (-25)$. 2. **Recall the subtraction rule:** Subtracting a negative number is the same
Multiply Mixed Numbers
1. **State the problem:** Multiply the mixed numbers $1\frac{1}{5}$, $\frac{3}{4}$, and $2\frac{1}{2}$.\n\n2. **Convert mixed numbers to improper fractions:**\n- $1\frac{1}{5} = \f
Division By Zero
1. The problem is to evaluate the expression $\frac{2}{0}$.\n\n2. Division by zero is undefined in mathematics because there is no number that you can multiply by 0 to get a non-ze
Linear Systems
1. **Problem 4: Representing the triangle angles as a system of linear equations** The problem states:
Solve Inequality
1. **State the problem:** Solve the inequality $9x + 4 > 10$ for $x$. 2. **Recall the rule:** To solve inequalities, isolate the variable on one side. When dividing or multiplying
Height Inequality
1. The problem states that the height $h$ of a person should not be less than 3.8 ft to ride the roller coaster. 2. This means the height must be at least 3.8 ft.
Average Marks Inequality
1. The problem states that Adam's average marks in subjects A, B, C, D, and E are more than 85. 2. To express the average, we sum the marks of all five subjects and divide by 5.
Inequality Solution
1. **State the problem:** We need to find the values of $p$ for which the inequality $$\frac{2}{3} - \frac{p}{4} \geq \frac{7}{6}$$ holds true. 2. **Write down the inequality:** $$
Sum Arithmetic
1. **Stating the problem:** We are given an arithmetic sequence with the formula for the $n$-th term: $$U_n = 12 - 5n$$
Linear Equations Matrix
1. **State the problem:** We have three purchases with total costs and want to find the cost of one t-shirt ($t$), one video ($v$), and one stuffed animal ($s$).
Ticket Sales
1. **State the problem:** We need to find the number of adult ($x$), student ($y$), and child ($z$) tickets sold given:
Hcf 90 252
1. **State the problem:** We need to draw the prime factor tree for 90 and then use it along with the prime factorization of 252 to find the highest common factor (HCF) of 90 and 2
Marble Probability
1. **State the problem:** We have a bag with green, red, and blue marbles. The number of marbles for each color is given by expressions involving $x$ and $y$: - Green: $4x - y + 3$
Algebra Equations
1. **Problem 1:** Solve the equation $4^3 = 4(2x + 3)$. - Calculate $4^3 = 64$.
Expression Simplification
1. **State the problem:** Simplify and solve the given expressions and equations step-by-step. 2. **Simplify the first expression:**
Exponential Graph
1. The problem is to plot the graph of a function. 2. Since no specific function was given, let's consider a general exponential function for demonstration: $$y = a^x$$ where $a >
Solve Equations
1. **Problem Statement:** Solve for $x$ given the departments' workers and their total: Department K = $x + 2^1$, Department L = $x$, Department M = $x - 10$, and their sum is 40.
Expansion Distributiva
1. El problema es expandir la expresión $4(x-5)(x-2)$ usando la propiedad distributiva. 2. La propiedad distributiva dice que $a(b+c) = ab + ac$. Aquí la aplicaremos dos veces porq
Bridge Curve Height
1. **State the problem:** We have a parabolic curve representing the bridge arch given by the function $f(x) = px^2 + \frac{1}{4}x + 91$. The length of the base $AB$ is 144 m, and
Solve Linear Equation
1. **State the problem:** Solve the equation $$2^2 (-y + 1) = \frac{3}{4} y$$ for $y$. 2. **Rewrite the equation:** Since $2^2 = 4$, the equation becomes $$4(-y + 1) = \frac{3}{4}
Asymptotes Rational
1. **State the problem:** We need to find all vertical and horizontal asymptotes of the rational function $$f(x) = \frac{3x^2 - 6x - 9}{2x^2 + 7}$$. 2. **Vertical asymptotes:** The