15/22.5 x 3/4 = ...... hr
AB + BC = AC
5x-9 + x = 2x+7
4x= 16
x = 4
AB = 5x-9
= 5(4) - 9 = 11 units, Domenica......
Mach 2.4 is 2.4 times the speed of sound
2.4 x 344 m/sec x 3600sec/hr x 1 km / 1000m = .......... km/hr
Draw a Venn diagram to visualize this more easily:
yes 278 with a 000 000 after it
Let's start at 2 * 3 * 4 * 5 = 120 120 will not work.....but if divided by 5 and 1 is left...how about 121
then if divided by 5 one is left
same with 4 and 3 and 2
so 121 camels would work the parameters given BUT the question states it is LESS than 100
let's back up by 25 to 96 won't work...back up 5 more
91 works
A B or C
"complete the square' for x y and z
x^2-4x + y^2+8y + z^2 +6z = 4
(x-2)^2 + (y+4)^2 + (z+3)^2 = 4 + 4 + 16 + 9
center is thus 2, -4, -3 radius = sqrt (4+4+16+9) = sqrt 33
line through (1,4) and (3,-2)..... slope = m = (4- -2) / ( 1-3) = -3
perpindicular is - 1/m = 1/3
Point slope form of line thru 3, -5 with slope 1/3
(y+5) = 1/3 (x-3)
a = adult tix value = $ 7a
c = children = (272-a) value = $ 4 ( 272-a) summed , they equal 1694
7a + 4 (272-a) = 1694
solve for a then c = 272-a
