Andres school orders some new supplies for the chemistry lab. The online store shows a pack of 10 test tubes costs $4 less than a set of nested beakers. in order to fully equip the lab, the school orders 12 sets of beakers and 8 packs of rest tubes. a. Write an equation that shows the cost of a pack of test tubes, t, in terms of the cost of a set of beakers. b.the school office receives a bill for the supplies in the amount of $348. Write an equation with t and b that describes this situation. d. solve equation for b. e. How much did the school pay for a set of beakers? for a pack of test tubes?

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general 11 months ago 1865

Points (−3, 5) and (3, 5) on the coordinate grid below show the positions of two players on a tennis court: A coordinate plane is shown. There is a point at 3, 5 labeled Player 2. There is a point at negative 3, 5 labeled Player 1. Which statement best describes the relationship between the positions of the two players? Player 2's position is Player 1's position reflected across the y-axis; only the signs of the y-coordinates of Player 1 and Player 2 are different. Player 2's position is Player 1's position reflected across the x-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different. Player 2's position is Player 1's position reflected across the x-axis; only the signs of the y-coordinates of Player 1 and Player 2 are different. Player 2's position is Player 1's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.

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general 11 months ago 4410

(1 point) a tank contains 1060 l of pure water. a solution that contains 0.06 kg of sugar per liter enters the tank at the rate 9 l/min. the solution is mixed and drains from the tank at the same rate. (a) how much sugar is in the tank at the beginning? y(0)= 0kg (include units) (b) with s representing the amount of sugar (in kg) at time t (in minutes) write a differential equation which models this situation. s′=f(t,s)= 0.54-(9s/1060) . note: make sure you use a capital s, (and don't use s(t), it confuses the computer). don't enter units for this function. (c) find the amount of sugar (in kg) after t minutes.

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general 11 months ago 7104