Acertain amusement park sells half-day passes and all-day passes. the amusement park charges $40 for a half-day pass and $80 for an all-day pass. the amusement park sold a total of 70 passes one day for $4,600. how many all-day passes did the amusement park sell?

45 all-day passes

Step-by-step explanation:

Let x be the number of half-day passes. Let y be the number of all-day passes.

x+y=70

40x+80y=4600

40(70-y)+80y=4600

y= 45 all-day passes

1696 hundred thousand

step-by-step explanation:

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w