Algebra Answers

6(5v+12)=-18

Alexandra brought a hat that costs 14 dollars and a watch that costs 6 dollars. At the counter she received a discount. If she payed only 15 dollars, how much was the discount?

Ava's aquarium is 95% filled with water. The tank holds 1,120 gallons of water. Select the remaining number of gallons of water needed to fill the aquarium to the top. *

Ava's aquarium is 95% filled with water. The tank holds 1,120 gallons of water. Select the remaining number of gallons of water needed to fill the aquarium to the top

Two firms X and Y produce the same commodity. Due to production constraints, each firm is
able to produce 1, 3 and 5 units. The cost of producing x q units for firm X is
` [6+ q square(x)-2q(x)+ 5] and firm Y has identical cost function ` [6_+ q square(y) -2q(y) + 5] 2 + − + y y q q for producing
y q units. p is the price of one unit for firm X . We assume that the market is in equilibrium.
The outcomes are the profits of the firm shown in the form of a matrix A = {aij } . Write (i) a11
(ii) a22 (iii) a21, if demand function D( p) is given as D( p) = 50 − p .

Students set a goal of collecting 900 cans for the canned food drive. The number of cans they have collected so far is 82% of their goal. How many cans have they collected so far?

(3+2√2)^x + (3-2√2)^x =34 find x.

On July 28, 1945, an airplane crashed into the 78th and 79th floors of the Empire State Building in New York City. Hundreds of pieces of debris fell 975 feet to the street below.

a) How long did it take for the debris to reach the ground? Use the formula
h = -16t2 + 975.


b) How much time after hearing the crash did the people on the street have to get out of the way of the falling debris? (sound travels at about 1100ft/sec.)
Please help I have been doing this for a solid 3 hours

Consider a primary school textbook chapter on decimal fractions. Also look at other chapters on concepts that would be linked with this concept. Is the sequence of linked concepts, as given in the textbook, based on how an adult thinks a child should learn? How different is this sequence from the way it would be if a child- centred curriculum were to be followed? To answer these questions you must interact with several children and teachers. Then explain how you have arrived at your answer to the questions.