All Questions ⁺⁰231266 Questions

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218

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Math

A boy had a packet of 320 candies with 2 different flavours. 7/16 were orange flavour and the rest were lemon. He gave his friend 30 orange candies and some lemon ones. As a result, the ratio of the number of orange candies to that of lemon became 11:15. read more ..

Guest Jul 7, 2022

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208

2

Algebra

Find positive integers (a,b) so that (37 + 20*sqrt(3))^2 = a + b*sqrt3. Answer in the form of "a, b".

Guest Jul 7, 2022

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214

2

Math

Brian had $3,800. He spent 3/5 of his money and gave $210 to his mother. How much did he have left?

Guest Jul 7, 2022

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222

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trapezoid

The trapezoid shown has a height of length 12 cm, a base of length 16 cm, and an area of 162 cm^2 . What is the top edge of the trapezoid?

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Guest Jul 7, 2022

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171

1

Help with this

Pentagon A, rectangle B and triangle C formed the figure below. The ratio of the area of A : B : C is 6 : 5 : 3. If of C is shaded, what fraction of the figure is unshaded? The figure is not drawn to scale.
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Guest Jul 7, 2022

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206

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Multiples

How many multiples of 6 are greater than -25, but less than 125?

Guest Jul 7, 2022

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215

1

help plz

What is the smallest positive integer that is the sum of a multiple of 15 and a multiple of 16? (Remember that multiples can be negative.)

Guest Jul 7, 2022

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228

3

A question

Let , , and be real numbers such that

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Guest Jul 7, 2022

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211

1

Number Theory

Find the largest integer less than 80 that leaves a remainder of 3 when divided by 6.

Guest Jul 7, 2022

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217

1

Coordinates

The midpoint of the line segment between (x,y) and (2,4) is (17,8). Find (x,y).

Guest Jul 7, 2022

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197

1

Trapezoid

What is the perimeter of the trapezoid shown?

Guest Jul 7, 2022

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217

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Regular octagon

Sides AH and BC of regular octagon ABCDEFGH are extended to meet at point P. What is the degree measure of angle P?

Guest Jul 7, 2022

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206

1

Help

I have some red and green marbles. 25% of the red marbles are equal to 1/6 of the green marbles. There are 160 more green marbles than red marbles. How many red marbles will I have left after giving away 114 red ones?

Guest Jul 7, 2022

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202

1

Number Theory

If $n = 2^{10} \cdot 3^{8} \cdot 5^{14}$, how many of the natural-number factors of n are multiples of 150?

Guest Jul 7, 2022

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188

1

polynomials

If f(x) and g(x) are polynomials such that f(x) + g(x) = -2 - x, then what is g(x) if f(x) + g(x) = x^3 + 2x + 2?

Guest Jul 7, 2022

Jul 6, 2022

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211

1

Help

The ratio's between the number of Robert's beads and the number of Robin's beads was 1:4. Unfortunately Robert lost 1/5 of his beads. Then Robin shared 152 beads to Robert so that they had the same amount of beads. How many beads did Robin have at first? read more ..

Guest Jul 6, 2022

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126

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Inequality

Show that if are the lengths of the sides of a triangle and if then

Guest Jul 6, 2022

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140

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polynomial

Jamie and Billy each think of a polynomial. Each of their polynomials is monic, has degree 3, and has the same positive constant term and the same coefficient of x. The product of their polynomials is x^6 +2x^5 +2x^4 +18x^3 + 33x^2+40x+81. What read more ..

Guest Jul 6, 2022

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206

2

help math

Find the number of five-digit multiples of 5, where all the digits are different, and the second digit (from the left) is 1.

Guest Jul 6, 2022

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176

1

Coordinates

Which of the following points is farthest from the origin: (1,4), (3,5), (0,1), (-6,0), (7,-5), (-4,-2)?

Guest Jul 6, 2022

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210

1

Inequality

Solve the inequality 2x - 5 <= -x + 12 - 3x + 7. Give your answer as an interval.

Guest Jul 6, 2022

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204

1

Function

Let f(x)=1/(ax+b) where a and b are nonzero constants. Find all solutions to f^(-1)(x) = 1. Express your answer in terms of a and/or b.

Guest Jul 6, 2022

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208

1

geometric series

Find the value of b given that
b/7+b^2/7^2+b^3/7^3.....=1

Guest Jul 6, 2022

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220

1

Algebra problem

On Monday, I worked t-6 hours and earned 2t-5 dollars per hour. My friend Andrew worked 2t-9 hours but only earned t-5 dollars an hour. As it turns out, we earned the same amount. What is the value of t?

Guest Jul 6, 2022

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