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All Questions
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231266 Questions
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209
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Counting
I have 3 identical math books, 3 identical English books, 2 identical French books, and 2 identical physics books. In how many distinguishable ways can I arrange them on a shelf?
Guest
Sep 9, 2021
0
462
1
Ratios
Siti and Zafri had some money in the ratio 3:4. They bought a present for their mother and shared the cost in the ratio 2:3. Siti used of her money to pay for her share. Zafri, after paying for his share, had $21 left. How much did the present cost?
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Guest
Sep 9, 2021
0
368
1
Is there a way to do in ratio method?
Ethan bought a bag of marbles. After giving 1/5 of his marbles to Jacob and 105 marbles to Adam, he had 1/3 of the marbles left. How many marbles did Ethan buy?
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Guest
Sep 9, 2021
0
272
1
please help
what is 3x+b. when X=-2 and b=7
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Guest
Sep 9, 2021
0
328
1
help with math
The equation of the line passing through (1,11) and (4,8) can be expressed in the form
x/a + y/b = 1.
Find a.
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Guest
Sep 9, 2021
0
194
0
Polynomials
Consider the polynomial f(x) = 1 - 12x + 3x^2 - 4x^3 + 5x^4 and g(x) = 3 - 2x - 6x^3 + 19x^4. Find c such that the polynomial f(x) + cg(x) has degree 3.
Guest
Sep 9, 2021
0
400
1
+176
I really don't know how to answer this question :(
A crate contained forks and knives. of the cutlery in the crate were forks. 30 forks and 4 knives were removed from the crate and the remaining cutlery were divided into groups of 9 pieces each. In each group, there were 5 forks. What is the
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Whayousayy
Sep 9, 2021
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175
0
Polynomials
Let f, g, and h be polynomials such that h(x) = f(x) + g(x). If the constant term of f(x) is -4 and the constant term of h(x) is 3, what is g(0)?
Guest
Sep 9, 2021
0
261
0
+32
Please HELP!
Given: C is the midpoint of AE, B is the midpoint of AC, and D is the midpoint of CE
AE = 10x - y, CE = 2x + 2y - 4, and DE= 2x - y + 4
find: x, y and AB
mamabear81
Sep 9, 2021
0
356
1
Algebra
A paint mixer wants to mix paint that is 10% glosswith paint that is 35% gloss to make 6 gallons of paint that is 30% gloss. How many gallons of each paint should the paint mixer mix together?
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Guest
Sep 9, 2021
0
260
1
Considere a inequação
Considere a inequação (x²-3x-10).(-x²+4x-3) ≤ 0, qual valor abaixo não pertence ao conjunto verdade desta inequação? *
-3
25
2
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Guest
Sep 9, 2021
0
167
0
Help with system
Let (x_1, y_1), (x_2, y_2), ..., (x_n, y_n) be the real solutions to the system
x + 8y = 7
x^3 + 8y^3 = 343/81
Enter x_1 + y_1 + x_2 + y_2 + ... + x_n + y_n.
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Guest
Sep 9, 2021
0
307
1
help with graphing
Find the area of the region satisfying the inequality x^2 + y^2 <= 4x + 6y + 13 - 2x + 10y + 15.
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Guest
Sep 9, 2021
0
869
3
please help
We have a standard deck of 52 cards, with 4 cards in each of 13 ranks. We call a 5-card poker hand a full house if the hand has 3 cards of one rank and 2 cards of another rank (such as 33355 or AAAKK). What is the probability that five cards chosen at random
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Guest
Sep 9, 2021
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394
2
+164
Pls help
At a book fair, of the people bought 1 book. of the remaining
people bought 2 books each and the rest of the people bought 3
books each. A total of 4469 books were sold. How many people
were at the
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RunningManZZ
Sep 9, 2021
0
362
1
+164
Problem sum. I need help. Thank u.
Some ancient coins from Asia, Europe and Africa are on display in a museum. 1/5 of the coins are from Asia. 140 coins are from Europe. There are 20 more coins from Asia than Africa. How many ancient coins are on display altogether?
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RunningManZZ
Sep 9, 2021
0
318
1
Plz help!!!
Lucas has some red, green and yellow cards. 3/7 of the cards are red. The number of red cards is twice the number of green cards. What fraction of the cards are yellow?
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Guest
Sep 9, 2021
0
234
1
Quadrilaterals
Given that the diagonals of a rhombus are always perpendicular bisectors of each other, what is the area of a rhombus with side length 89 units and diagonals that differ by 6 units?
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Guest
Sep 9, 2021
0
318
1
geometry
The area of a rectangle is 588 in^2. The ratio of the length to the width is 4:5. Find the length and the width of the rectangle.
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Guest
Sep 9, 2021
0
248
2
Why?
why does math exist?
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Guest
Sep 9, 2021
0
164
0
Plz help
Find all pairs (x,y) of real numbers such that x + y = 10 and x^2 + y^2 = 56 + 9xy.
Guest
Sep 9, 2021
0
325
1
Please help TIA!
Jack spent $2040 of his savings on a hi-if set and 3/5 of the remainder on a display cupboard. If he had 1/4 of his original savings left, how much was his original savings?
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Guest
Sep 9, 2021
0
229
1
Algebra
What is sqrt(53*106) in simplest radical form
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Guest
Sep 9, 2021
0
318
1
Geometry
The length of each edge of a cube is decreased by 40%. By what percent does the volume of the cube decrease? Express your answer to the nearest tenth.
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Guest
Sep 9, 2021
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