Respuesta :
20/42 = 30 / x
cross multiply
(20)(x) = (42)(30)
20x = 1260
x = 1260/20
x = 63 <== ur missing term
===================
$ 76 for 8 guitar lessons......76/8 = 9.50 per guitar lesson
for 10 guitar lessons....(10 * 9.50) = $ 95 <==
===================
ratio of girls to boys is 3/4.....or 3:4 or 3 to 4 <==
===================
time = distance / speed
t = 200 / 25
t = 8 hrs <==
cross multiply
(20)(x) = (42)(30)
20x = 1260
x = 1260/20
x = 63 <== ur missing term
===================
$ 76 for 8 guitar lessons......76/8 = 9.50 per guitar lesson
for 10 guitar lessons....(10 * 9.50) = $ 95 <==
===================
ratio of girls to boys is 3/4.....or 3:4 or 3 to 4 <==
===================
time = distance / speed
t = 200 / 25
t = 8 hrs <==