All Questions ⁺⁰237740 Questions

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149

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The mean temperature for the first 4 days in January was -6C. The mean temperature for the first 5 days in January was -5C. What was the

The mean temperature for the first 4 days in January was -6°C. The mean temperature for the first 5 days in January was -5°C. What was the temperature on the 5th day?

Guest Jun 4, 2023

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138

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Help please

Find . That is, find the residue for which .
Express your answer as an integer from to , inclusive.

Guest Jun 4, 2023

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137

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Help

Rote tells the little monsters to do an overhead press every second and a squat every second. (For example, they should do their first squat seconds into the drill.)
How many times during the second drill should the little monsters do an read more ..

Guest Jun 4, 2023

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134

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ratios

A bag contains yellow, green, blue, and white marbles. The ratio of yellow, green, blue, and white marbles is 1:2:3:4. If the bag contains 180 marbles, then how many blue marbles are there?

Guest Jun 4, 2023

Jun 3, 2023

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146

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triangle

In triangle $ABC,$ $\angle A = p + 2q$ degrees, $\angle B = 6p - 8q$ degrees, and $\angle C = 17p + 2q$ degrees. Find $p$ (in degrees).

Guest Jun 3, 2023

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106

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How do I solve this?

Factor $(ab + ac + bc)^3 - a^3 b^3 - a^3 c^3 - b^3 c^3.$

Guest Jun 3, 2023

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142

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quadratic

What are the solutions to the equation, 3x^2-7x=12+2x^2-24?

Guest Jun 3, 2023

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137

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help geometry

Plz help guys
In the diagram below, SR = PQ = 20 and RT:TS = 2:3. Find UV.

Guest Jun 3, 2023

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132

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fractions

An aquarium tank is 1/6 full of water. When 2 gallons of water are added, the tank becomes 1/2 full. What is the total capacity of the aquarium tank, in gallons?

Guest Jun 3, 2023

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140

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+274

Help Please!

For all positive integers n, the nth triangular number T_n is defined as T_n = 1+2+3+...+n. What is the greatest possible value of the greatest common divisor of 4T_n and n-1?

supremecheetah Jun 3, 2023

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136

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solve

Solve for the variable x in terms of y and z, assuming y \neq \frac{1}{2}:
xy + x = \frac{3x + 2y + z + y + 2z}{3}

Guest Jun 3, 2023

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149

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altitudes

I need help with altitudes
Triangle ABC has altitudes AD, BE, and CF. If AD = 12, BE = , and CF is a positive integer, then find the largest possible value of CF.

Guest Jun 3, 2023

+1

150

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+70

please help

In the diagram, four circles of radius 1 with centers P, Q, R, and S are tangent to one another and to the sides of , as shown.
Find the perimeter of triangle ABC. read more ..

ItsFree Jun 3, 2023

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141

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plz help me

I am really stuck on this
In how many ways can three pairs of siblings from different families be seated in two rows of three chairs, if siblings may sit next to each other in the same row, but no child may sit directly in read more ..

Guest Jun 3, 2023

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143

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help plz

this might seem easy but i am easily confused.
Find the number of ways that Magnus can give out 10 identical stickers to 8 of his friends. (Not everyone has to get a sticker.)

Guest Jun 3, 2023

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130

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system

plz help with systems
For certain values of k and m, the system
3a + 2b = 2
6a + 2b = k + 3a + mb read more ..

Guest Jun 3, 2023

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109

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ratios

At a math convention, a poll is taken about cable news. It turns out that 7 out of every 12 people are bored by cable news. If there are 280 people at the convention who are bored by cable news, then how many people at the convention read more ..

Guest Jun 3, 2023

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131

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trapezoid

Can anyone help with this?
Let ABCD be a trapezoid with bases AB and CD. Let P be a point on side CD, and let X, Y be the feet of the altitudes from P to AD, BC respectively. Prove that if AD = 5, BC = 7, AB = 6, CD = 12, read more ..

Guest Jun 3, 2023

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