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461

+328

Ms. Marimartha's coins

Ms. Marimartha has a jar of coins — pennies, nickels, dimes, and quarters. Each student picks two coins from the jar, adds up the values of the two coins, and write the answer (in cents) on the whiteboard. For example, if a student picked a dime and a quarter, read more ..

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Potatobird Jan 31, 2021

583

Please Help!

Shawn has 150 ft. of the fence. He wants to create a dog pen where the length is twice as big as the width.

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Guest Jan 31, 2021

Jan 30, 2021

582

Help math

Two side lengths of a triangle are $11$ and $17$. What is the longest possible integer length of the third side of the triangle?

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Guest Jan 30, 2021

518

Circles

I need help with this
Billy plans to put some plastic edging around his circular fish pond. The diameter of the pond is 5 meters. Round the answer to the nearest whole-number unit.
a) Find the amount of plastic edging that Billy will need
b) If read more ..

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Guest Jan 30, 2021

-1

607

+167

Help

During competition, a figure skater must skate a figure 8 twice. The figure 8 is made up of 2 identical circles, each with radius 1.2 m.
a) What is the distance around each of these circles?
b) Find the total distance the figure skater has to read more ..

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kijijij Jan 30, 2021

519

counting

How many positive 2-digit odd numbers can be formed using 0,1, 2, 3, 4, 5 without repetition?

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Guest Jan 30, 2021

341

help plz

8 points are spaced around at intervals of one unit around a 2 x 2 square as shown. If 2 of the 8 points are chosen at random, what is the probability that they are more than one unit apart?

read more ..

Guest Jan 30, 2021

348

positive integers

If x, y and z are positive integers satisfying 13x=17y=19z, find the minimum value of x+y+z.

Guest Jan 30, 2021

4002

9th Grade Math

A lake near the Arctic Circle is covered by a thick sheet of ice during the cold winter months. When spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a rate of 0.20meters per week. After 7 weeks, read more ..

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Guest Jan 30, 2021

471

algebra

\[\begin{cases} { x }^{ 2 }+{ y }^{ 2 }=30 \\ x+y=10 \end{cases}\]
If the above equations are true simultaneously, then find the value of $xy$.

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Guest Jan 30, 2021

533

help

Find a linear inequality with the following solution set. Each grid line represents one unit.

read more ..

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Guest Jan 30, 2021

541

Points $A=(0,5)$ and $B=(10, 13)$ are joined to form line segment $\overline{AB}$.

Points $A=(0,5)$ and $B=(10, 13)$ are joined to form line segment $\overline{AB}$.
If point $P=(x,y)$ divides $\overline{AB}$ in the ratio $3 : 1$ externally, then what is $x + y?$

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Guest Jan 30, 2021

462

coordinates

Find the equation of the line in slope intercept form that is perpendicular to 2x-3y-12=0 and passes through the point (-3, 5). show your work

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Guest Jan 30, 2021

633

algebra question

The polynomial f(x)=x^3-x^2-6kx+4k^2 where k is a constant has (x-3)as a factor. Find the possible values of k and for the integral value of k find the remainder when f(x) is divided by x+2.

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Guest Jan 30, 2021

525

+87

HELP

What is the average of 88 numbers if the average of the first three numbers is 1212 and the average of the last five is 2020?

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JoLink Jan 30, 2021

391

help plz

Find the last two digits of $2^{101}$.

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Guest Jan 30, 2021

451

Hellppppp

There are cars in the CMC parking lot, which are all Acuras, Beetles, or Camrys. There are half as many Acuras as Beetles. The number of Camrys is %80 of the number of Acuras and Beetles together. How many of the 81 cars are read more ..

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Guest Jan 30, 2021

334

number theory

Find the smallest positive base-10 integer composed entirely of 1's and 0's that is divisible by 225.

Guest Jan 30, 2021

589

Hellppppp

Write This: as a common fraction.

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Guest Jan 30, 2021

480

HALP

Consider the lines\begin{align*}
y&=3x+5 \\ 2y&=4x+5 \\ 3y&=9x-2 \\ 2y&=x-3 \\ 4y&=x-5.
\end{align*}Let's say that a pair of lines is ${good}$ if the two lines are either parallel or perpendicular to each other. Among all the pairs read more ..

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Guest Jan 30, 2021

395

quadrilateral ABCD

The above figure is quadrilateral $ABCD$. Given that $\angle BAD + \angle ACD=145^\circ$, find the measure of $\angle BAC$ read more ..

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Guest Jan 30, 2021

384

average speed

Sonic and Flash each run at a constant rate of 7.5 miles per hour. Road Runner runs at a constant rate of 10 miles per hour. Speedy Gonzales runs at a constant rate of 12 miles per hour. In a relay chase with these four runners running one right after the read more ..

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Guest Jan 30, 2021

407

Please Help! Thanks!

As shown in the digram, PQ/QR =1/3. Find [PAB]/[QAB].

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Guest Jan 30, 2021

450

confused on this problem

Complete the square: x^2+12x+9.
Enter your answer in the form a(x+u)^2+v, where a, u, and v are replaced by numbers.

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Guest Jan 30, 2021

396

(5.29 x 103) x (6.8 x 10-7)=

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Guest Jan 30, 2021

All Questions ⁺⁰237643 Questions

Ms. Marimartha's coins

Please Help!

Help math

Circles

Help

counting

help plz

positive integers

9th Grade Math

algebra

help

Points $A=(0,5)$ and $B=(10, 13)$ are joined to form line segment $\overline{AB}$.

coordinates

algebra question

HELP

help plz

Hellppppp

number theory

Hellppppp

HALP

quadrilateral ABCD

average speed

Please Help! Thanks!

confused on this problem

(5.29 x 103) x (6.8 x 10-7)=

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