Question

Three squares have a total area of 35.25 𝑐𝑚2 . The larger square has twice the side-length of the middle-sized square. The smaller square has its side length exactly 0.5 cm smaller than the middle-sixed square. Find the side lengths of each of the three squares.

181

likes
903 views

Answer to a math question Three squares have a total area of 35.25 𝑐𝑚2 . The larger square has twice the side-length of the middle-sized square. The smaller square has its side length exactly 0.5 cm smaller than the middle-sixed square. Find the side lengths of each of the three squares.

Expert avatar
Jayne
4.4
106 Answers
Let's assume the side length of the middle-sized square is x cm. According to the given information, the larger square has twice the side length of the middle-sized square. Therefore, the side length of the larger square is 2x cm. The smaller square has its side length exactly 0.5 cm smaller than the middle-sized square. So, the side length of the smaller square is (x - 0.5) cm. The area of a square is calculated by squaring its side length. Therefore, we can write the following equations based on the given information: x^2 + (2x)^2 + (x - 0.5)^2 = 35.25 Expanding the equation: x^2 + 4x^2 + x^2 - x + 0.25 = 35.25 Combining like terms: 6x^2 - x + 0.25 = 35.25 Subtracting 35 from both sides: 6x^2 - x - 35 = 0 Now, we have a quadratic equation. We can solve it using various methods, such as factoring, completing the square, or using the quadratic formula. In this case, let's use the quadratic formula: x = (-(-1) ± √((-1)^2 - 4 * 6 * -35)) / (2 * 6) Simplifying: x = (1 ± √(1 + 840)) / 12 x = (1 ± √841) / 12 x = (1 ± 29) / 12 Now, we have two possible values for x: 1. (1 + 29) / 12 = 30 / 12 = 2.5 2. (1 - 29) / 12 = -28 / 12 = -2.33 (discard because side lengths cannot be negative) Therefore, the side length of the middle-sized square is 2.5 cm. The side length of the larger square is twice the side length of the middle-sized square, so it is 2 * 2.5 = 5 cm. The side length of the smaller square is 0.5 cm smaller than the middle-sized square, so it is 2.5 - 0.5 = 2 cm. In summary, the side lengths of the three squares are as follows: Smaller square: 2 cm Middle-sized square: 2.5 cm Larger square: 5 cm

Frequently asked questions (FAQs)
Math question: How many different ways can 4 people be chosen from a group of 8 for a committee? (
+
What is the value of \(2^{3} \times (4 \times 5)^{2}\)?
+
Math Question: What is the measure of each angle formed by the angle bisector if the original angle measures 120 degrees?
+
New questions in Mathematics
𝑦 = ( 𝑥2 − 3) (𝑥3 + 2 𝑥 + 1)
5(4x+3)=75
A book is between 400 and 450 pages. If we count them 2 at a time there is none left over, if we count them 5 at a time there is none left over and if we count them 7 at a time there are none left over, how many pages does the book have?
The derivative of a power is obtained just by subtracting 1 from the power True or false
You are planning to buy a car worth $20,000. Which of the two deals described below would you choose, both with a 48-month term? (NB: estimate the monthly payment of each offer). i) the dealer offers to take 10% off the price, then lend you the balance at an annual percentage rate (APR) of 9%, monthly compounding. ii) the dealer offers to lend you $20,000 (i.e., no discount) at an APR of 3%, monthly compounding.
Find the derivatives for y=X+1/X-1
There are four times as many roses as tulips in Claire’s garden. Claire picked half of the number of roses and 140 roses were left in the garden. How many roses and tulips were in the Garden the first?
Determine the general equation of the straight line that passes through the point P (2;-3) and is parallel to the straight line with the equation 5x – 2y 1 = 0:
Lim x → 0 (2x ^ 3 - 10x ^ 7) / 5 * x ^ 3 - 4x )=2
3+7
2x2
Let X be a discrete random variable such that E(X)=3 and V(X)=5. Let 𝑌 = 2𝑋^2 − 3𝑋. Determine E(Y).
Perform operations with the polynomials P(x) = x3 and Q(x) = 2x2 + x – 3x3 : a) P(x) - Q(x)
Below are three 95% CIs (where 𝜎 was known and 𝑥̅happened to be the same); one with sample size 30, one with samplesize 40, and one with sample size 50. Which is which?(66.2, 76.2)(61.2, 81.2)(56.2, 86.2)
25) Paulo saves R$250.00 per month and keeps the money in a safe in his own home. At the end of 12 months, deposit the total saved into the savings account. Consider that, each year, deposits are always carried out on the same day and month; the annual yield on the savings account is 7%; and, the yield total is obtained by the interest compounding process. So, the amount that Paulo will have in his savings account after 3 years, from the moment you started saving part of your money monthly, it will be A) R$6,644.70. B) R$ 9,210.00. C) R$ 9,644.70. D) R$ 10,319.83. E) R$ 13,319.83
How many digits are there in Hindu-Arabic form of numeral 26 × 1011
5a-3.(a-7)=-3
Find the orthogonal projection of a point A = (1, 2, -1) onto a line passing through the points Pi = (0, 1, 1) and P2 = (1, 2, 3).
The length of a rectangle is five more than its width. if the perimeter is 120, find both the length and the width.
Find the number of liters of water needed to reduce 9 liters of lotion. shave containing 50% alcohol to a lotion containing 30% alcohol.