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All Questions
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233058 Questions
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382
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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,
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Potatobird
Jan 31, 2021
0
501
1
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
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510
2
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
0
442
1
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
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Guest
Jan 30, 2021
-1
535
1
+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
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kijijij
Jan 30, 2021
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438
1
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
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271
0
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?
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Guest
Jan 30, 2021
0
281
0
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
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3978
1
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,
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Guest
Jan 30, 2021
0
389
1
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
0
464
7
help
Find a linear inequality with the following solution set. Each grid line represents one unit.
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Guest
Jan 30, 2021
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463
2
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
0
388
1
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
0
562
2
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
0
453
1
+86
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
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325
1
help plz
Find the last two digits of $2^{101}$.
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Guest
Jan 30, 2021
0
386
1
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
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Guest
Jan 30, 2021
0
266
0
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
0
515
4
Hellppppp
Write This:
as a common fraction.
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Guest
Jan 30, 2021
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405
1
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
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Guest
Jan 30, 2021
0
316
1
quadrilateral ABCD
The above figure is quadrilateral \(ABCD\). Given that \(\angle BAD + \angle ACD=145^\circ\), find the measure of \(\angle BAC\)
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Guest
Jan 30, 2021
0
314
1
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
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Guest
Jan 30, 2021
0
327
1
Please Help! Thanks!
As shown in the digram, PQ/QR =1/3. Find [PAB]/[QAB].
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Guest
Jan 30, 2021
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375
1
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
0
327
1
(5.29 x 103) x (6.8 x 10-7)=
(5.29 x 103) x (6.8 x 10-7)=
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Guest
Jan 30, 2021
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