🧮 algebra
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Painting Rates
1. **State the problem:** Betty paints twice as fast as Dan. Together, Dan and Betty paint 2400 square feet in 4 hours. Sue joins them, and all three paint 3600 square feet in 3 ho
Factorization Expression
1. נתחיל מהביטוי הנתון: $5y^{29} - 20m^4$
2. נבדוק אם יש גורם משותף לשני האיברים. נראה כי $5$ הוא גורם משותף.
Water Addition
1. **State the problem:** A baker starts with $\frac{3}{4}$ cup of water.
2. He pours half of the water into the batter, so the amount poured is:
Factor Expression
1. נתחיל מהביטוי הנתון: $125y^2 - 180m^4$
2. נזהה גורם משותף למקדמים: $125$ ו-$180$ שניהם מתחלקים ב-$5$.
Fraction Pens
1. **State the problem:** Annie bought 17 articles consisting of books and pens for a total cost of 25000. Each book costs 2000 and each pen costs 1000. We need to find the fractio
Bag Weights
1. **State the problem:** We have three types of bags: wheat (W), corn (C), and oats (O). The problem gives us relationships between their weights and asks for the weight of one ba
Cheapest Pen Cost
1. The problem asks us to find which box of pens has the cheapest cost per pen.
2. We calculate the cost per pen for each box by dividing the total cost by the number of pens:
Machine Payoff
1. **State the problem:** Jason wants to know how many days it will take for the machine to produce enough silverware to cover its $9000 cost.
2. **Calculate the production rate:**
Binomial Arithmetic Compound
1. **Problem 21a:** Find the binomial expansion of $\left(1 - \frac{x}{4}\right)^5$ in ascending powers of $x$.
Using the binomial theorem:
Cubic Analysis
1. The problem is to analyze the function $y=2x^3 - x^2$.
2. First, identify the function type: it is a cubic polynomial.
Find X
1. The problem is to find the value of $x$ given an equation or condition (please provide the full equation or condition to solve for $x$).
2. Since the equation or condition is mi
Venn Ratio
1. The problem states that the numbers 40 and P are in the ratio 4:3, and their prime factors are represented in a Venn diagram.
2. First, express 40 as its prime factors: $$40 = 2
Computers Needed
1. **State the problem:** ABC Company has 80 employees and currently has \(\frac{1}{4}\) fewer computers than employees. They plan to hire 5% more employees. We need to find how ma
Longest Ribbon
1. **State the problem:** Scarlett has 44 m of blue ribbon and 110 m of red ribbon. She wants to cut all the ribbon into smaller pieces of the same length with no ribbon left over.
Clock Angle Zero
1. પ્રશ્ન: 10 અને 11 વાગ્યાની વચ્ચે ઘડિયાળના કલાક કાંટા અને મિનિટ કાંટા વચ્ચેનો ખૂણો 0° ક્યારે થાય છે તે શોધો.
2. ઘડિયાળના કલાક કાંટા અને મિનિટ કાંટા વચ્ચેનો ખૂણો 0° એટલે કે બંને ક
Loading Time
1. **State the problem:** We need to find how long the new computer will take to load a document containing 2 graphics and 1 paragraph, given that the new computer loads 17% faster
Typing Speed Increase
1. **State the problem:** Jack initially types at 80 words per minute (wpm). After two weeks, his speed increases by 3%. By the end of the course, he types a 1,680-word document in
Triathlon Distances
1. نبدأ بكتابة الكسر الذي يمثل المسافة التي يقطعها سفيان سباحة.
- المرحلة الأولى: يقطع \frac{3}{4} من المسافة على الدراجة.
Sum Divisibility
1. The problem asks to find the sum of the sequence $1 + 2 + 3 + \dots + 1001$ and determine which of the given numbers it is divisible by.
2. The sum of the first $n$ natural numb
Expression Simplification
1. **State the problem:** Simplify the expression $$\left(1 - \frac{4}{9}\right)^2 - \frac{7}{25} - \left(\frac{1}{3}\right)^2$$.
2. **Simplify inside the parentheses:**
Solve Quadratic System
1. We are given the system of equations:
$$a+b=21$$