All Questions ⁺⁰237722 Questions

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430

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MATHS

Mary had $488 more than Rachel at first. After each girl spent the same amount of money at a shop, Rachel had 3/5 of her money left while Mary had 6/7 of her money left. How much money did they have left altogether?

Guest Oct 7, 2021

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381

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maths

Mary had $488 more than Rachel at first. After each girl spent the same amount of money at a shop, Rachel had of her money left while Mary had of her money left. How much money did they have left altogether?

Guest Oct 7, 2021

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6

495

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PHYSICS

A boy standing on a 20m tall bridge sees a motorboat approaching the bridge at a constant speed. When the boat is 2.7 m from the bridge, the boy drops a stone to the water below. If the stone strikes the water 2.5 m in front of the bow of the boat at what read more ..

Guest Oct 7, 2021

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262

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Exponential functions

If f(x) is an exponential function where f(3) = 18 and f(7.5) = 60, then find thevalue of f(12), to the nearest hundredth.

Guest Oct 7, 2021

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394

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Quadratic

What real value of produces the smallest value of the quadratic t^2 - 9t - 36 + t^2 - t + 4?

Guest Oct 7, 2021

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425

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Counting

At Beaumont High School, there are 12 players on the baseball team. All 12 players are taking at least one of biology or chemistry. If 9 players are taking biology and 2 players are taking both sciences, how many players are taking chemistry?

Guest Oct 7, 2021

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457

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Probability

The Grammar club has 20 members: 10 boys and 10 girls. A 4-person committee is chosen at random. What is the probability that the committee has 2 boys and 2 girls?

Guest Oct 7, 2021

Oct 6, 2021

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450

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geometry

I took a screenshot of this question earlier but it got moderated idk why

D is on side AB of ABC We know triangle ABC ~ triangle ACD and we know all the marked side lengths.
What is the length of AB? read more ..

Guest Oct 6, 2021

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385

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geometry pls help

We know DE is parallel to BC. GIven = 9 and = 6, find .

Guest Oct 6, 2021

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410

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triangle thingy

In triangle ABC, shown here, line AB and line AC have each been divided into 4 congruent segments. What fraction of triangle ABC is shaded? Express your answer as a common fraction.
read more ..

Guest Oct 6, 2021

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436

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arithmetic

Guest Oct 6, 2021

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311

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Conics

The graph of the equation x^2 + 4y^2 - 10x + 88y = k is a non-degenerate ellipse if and only if k > a. What is a?

Guest Oct 6, 2021

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330

2

Fractions

Joe traveled from Austin to Leander last week. Joe completed 4/5 of the distance in the morning and 1/5 of the remaining distance in the afternoon. I still had 12 miles to travel. What is the distance from Austin to Leander?

Guest Oct 6, 2021

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334

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Help probability

A point in space (x,y,z) is randomly selected so that $-1\le x \le 1$,$-1\le y \le 1$,$-1\le z \le 1$. What is the probability that $x+y+z\le 1$?

Guest Oct 6, 2021

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340

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HELPP MEHH

A table of values of a linear function is shown below. Find the output when the input is
n
.
input read more ..

Guest Oct 6, 2021

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423

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Inequality

Suppose 1/2 + 1/3 + 1/4 + ... + 1/x > 2.
What is the smallest possible value for x?

Guest Oct 6, 2021

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407

2

Please help. Thanks.

Xayden and Peter share some candies. If Xayden gives 2/5 of his share to Peter, Peter will have 156 more candies than him. If Xayden gives 3/4 of his share to Peter, Peter will have 240 more candies than him. How many candies must Peter give to Xayden read more ..

Guest Oct 6, 2021

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294

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Help me with this

Three friends are sharing some coins.

Emma gets of the coins.
read more ..

Guest Oct 6, 2021

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446

1

Decimals

Let $x = (0.\overline{6})(0.\overline{06})$. When x is written out as a decimal, what is the sum of the first 15 digits after the decimal point?

Guest Oct 6, 2021

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414

2

Decimals

Let $y = 0.(\overline{123}) + (\overline{345})$. When y is written out as a repeating decimal, what is the sum of the digits in a single repeating period? (In other words, what is the sum of the digits covered by the repeat bar?)

Guest Oct 6, 2021

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314

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Probability

I have two cubes such that, on each cube, three faces are painted red and three faces are painted white. If I roll each of the cubes once, what is the probability that they will land such that there are two red faces up?

Guest Oct 6, 2021

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431

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Help math

I tell you these facts about a mystery number, c:

* 1.2 < c < 1.3
* c can be written as a fraction with one digit for the numerator and one digit for the denominator.
* Both c and 1/c can be written as finite (non-repeating) read more ..

Guest Oct 6, 2021

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430

1

please help

john can rent a life jacket for a flat fee of $6.00 and a canoe for $5.00 per hour. If the total charge is $41.00, how many hours did he rent the canoe

please help

Guest Oct 6, 2021

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409

1

Combo problem

Brent rolls a fair dodecahedral die with numbers 1,2,3,...,11,12 on its faces. What is the expected number he obtains? Express your answer in a decimal.

Guest Oct 6, 2021

0

407

1

Decimals

Write $\frac{99}{100} (0.\overline{42})$ as a fully simplified fraction.

Guest Oct 6, 2021

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