Mathematics, 07.04.2020 21:20 victoriapellam04

Ella says the answer to $79 ÷ 4 is $19.30. What did she do wrong?

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Mathematics, 21.06.2019 20:10, jessixa897192

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

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Mathematics, 22.06.2019 00:30, yokis2710

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?

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Mathematics, 22.06.2019 00:30, lazybridplayer

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations

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Mathematics, 22.06.2019 02:00, Dweath50

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.