All Questions ⁺⁰235735 Questions

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help algebra

Real numbers $a$ and $b$ satisfy
a + ab^2 = 250ab + ab^3
a - ab^2 = 240ab - 50b^2
Enter all possible values of a, separated by commas.

bader Mar 17, 2024

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22

1

+1768

Ratios

A bag contains yellow, green, blue, and white marbles. The ratio of yellow, green, blue, white marbles is $4:1:2:3$. If the bag contains $20$ marbles, then how many blue marbles are there?

bader Mar 17, 2024

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22

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+1768

system

Find the ordered triple $(p,q,r)$ that satisfies the following system:
p - 2q &= 3 - 4p + 7q, \\
q - 2r &= -2 - 5q, \\
p + r &= 9 + 10q.

bader Mar 17, 2024

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19

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+1246

Triangles

In rectangle $ABCD$, points $E$ and $F$ lie on segments $AB$ and $CD$, respectively, such that $AE = \frac{AB}{8}$ and $CF = \frac{CD}{5}$. Segment $BD$ intersects segment $EF$ at $P$. What fraction of the area of rectangle $ABCD$ lies in triangle $EBP$? read more ..

Akhain1 Mar 17, 2024

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22

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+1246

Triangle

Triangle $ABC$ is similar to triangle $XYZ$ with side $AB$ measuring $14$ units, side $BC$ measuring $8$ units and side $XY$ measuring $16$ units. What is the measure of side $YZ?$

Akhain1 Mar 17, 2024

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18

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+1246

Geometry

A circle is inscribed in a rhombus with sides of length 4 cm. If the two acute angles in the rhombus each measure $90^{\circ}$, what is the length of the circle's radius? Express your answer in simplest radical form.

Akhain1 Mar 17, 2024

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33

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+1768

help with algebra

In Linguistics $101,$ the ratio of the number of juniors to the number of seniors is $3:2$. When twelve more juniors join the class, and one senior drops the class, the ratio of the number of juniors to the number of seniors becomes $2:1$. How read more ..

bader Mar 17, 2024

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23

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+1246

Pyramids

Two cross sections of a right hexagonal pyramid are obtained by cutting the pyramid with planes parallel to the hexagonal base. The areas of the cross sections are $216\sqrt{3}$ square feet and $200$ square feet. The two planes are $4$ feet apart. How far read more ..

Akhain1 Mar 17, 2024

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18

1

+1246

Isosceles triangle

An isosceles triangle has side lengths $8$ cm, $10$ cm and $10$ cm. The longest side of a similar triangle is $20$ cm. What is the perimeter of the larger triangle, in centimeters?

Akhain1 Mar 17, 2024

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23

4

+85

Geometry

Can you solve these problems?
1.

2.
<#> 3.<#> read more ..

Akhaim1 Mar 17, 2024

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38

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+1768

need help

At a cafeteria, Mary orders two pieces of toast and a bagel, which comes out to 3.15. Gary orders a bagel and four muffins, which comes out to 7.85. Larry orders a piece of toast, two bagels, and three muffins, which comes out to 9.75. read more ..

bader Mar 17, 2024

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36

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+1839

Algebra

Will and Grace are canoeing on a lake. Will rows at $50$ meters per minute and Grace rows at $30$ meters per minute. Will starts rowing at $2$ p.m. from the west end of the lake, and Grace starts rowing from the east end of the lake at $2{:}45$ p.m. read more ..

ABJeIIy Mar 17, 2024

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27

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+8

converting things to rectangular form (i think im overthinking it)

a. Convert e^-pi(i) to rectangular form.
b. Convert 2e^pi(i)/6 to rectangular form
c. When 7-i is converted to the exponential form re^itheta, what is r?

anna1125 Mar 17, 2024

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+8

PLEASE HELP ASAP!!

What is the smallest positive integer value of n such that (√3/2-i/2)^n is real?

anna1125 Mar 17, 2024

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22

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+1839

Algebra

I have to paint one side of a wall. The wall is $15$ meters tall and $60$ meters long. Each gallon of paint covers $400$ square feet. If a foot is approximately $0.3048$ meters, then what is the smallest whole number of gallons I can buy and read more ..

ABJeIIy Mar 17, 2024

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+1839

help with rates

I drove to the beach at a rate of $40$ miles per hour. If I had driven at a rate of $55$ miles per hour instead, then I would have arrived $25$ minutes earlier. How many miles did I drive?

ABJeIIy Mar 17, 2024

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Algebra

All members of our painting team paint at the same rate. If $45$ members can paint a specific wall in $60$ minutes, then how long would it take $12$ members to paint the same wall, in minutes?

ABJeIIy Mar 17, 2024

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24

2

+1839

Algebra

All members of our painting team paint at the same rate. If $40$ members can paint a $100$ square foot wall in $50$ minutes, then how long would it take the $40$ members to paint a $480$ square foot wall, in minutes?

ABJeIIy Mar 17, 2024

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12

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+660

Reposting bc answers were wrong :)

https://web2.0calc.com/questions/please-help-similar-question-was-asked

Keihaku Mar 17, 2024

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24

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+1839

Rate question

All members of our painting team paint at the same rate. If $50$ members can paint a $3600$ square foot wall in $20$ minutes, then how long would it take for $25$ members to paint a $4000$ square foot wall, in minutes?

ABJeIIy Mar 17, 2024

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19

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+1839

help plz

In physics, Ohm's law says that current through a wire, $I$, is directly proportional to voltage, $V$, and inversely proportional to resistance, $R$:
\[I=\frac{V}{R}.\]
It's also true that resistance is directly proportional to the length of read more ..

ABJeIIy Mar 17, 2024

Mar 16, 2024

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+1839

Rates

A plane flies from Penthaven to Jackson and then back to Penthaven. When there is no wind, the round trip takes $3$ hours and $20$ minutes, but when there is a wind blowing from Penthaven to Jackson at $70$ miles per hour, the trip takes $3$ hours read more ..

ABJeIIy Mar 16, 2024

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+2669

Algebra

Let $d$ and $e$ denote the solutions of $2x^{2}+3x-5=x^2+7x+3$. What is the value of $(d-1)+(e-1)$?

LiIIiam0216 Mar 16, 2024

-1

33

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+2669

Roots

Let $a$ and $b$ be the roots of the quadratic equation $2x^2+6x-14=x^2+4x-8$. What is the value of $(2a-3) + (4b-6)$?

LiIIiam0216 Mar 16, 2024

-1

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+2669

Roots

Let $a$ and $b$ be the roots of the quadratic equation $x^2-25x+80=13x+60$. Compute $\frac{a^2}{b} + \frac{b^2}{a}$.

LiIIiam0216 Mar 16, 2024

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