Answer: 1. Tan(a)=350/650
2.cos(a)= 8.5/10
3. Cos(x)= 2.7/4.9
Step-by-step explanation:
Answer:
we know that
16/4-----------> 8/2---------> 4/1
so
case 1)
64/16--------> 32/8-----> 16/4------> 8/2------> 4/1
the quantity (64/16) is proportional to 16/4
case 2)
6/1 is not 4/1
so
the quantity (6/1) is not proportional to 16/4
case 3)
5/1 is not 4/1
so
the quantity (5/1) is not proportional to 16/4
case 4)
48*12--------> 24/6-----> 12/3------> 4/1
the quantity (48/12) is proportional to 16/4
case 5)
4/1 is equal to 4/1
so
the quantity (4/1) is proportional to 16/4
Step-by-step explanation:
In one hour she will walk 3 3/4 miles.
Hope this helps.
8x^2 +13x -6 =(8x-3)(x+2)
So
100%=original
25% discount
100-25=75
it is 180 sale
75%=180
find 100%
a hack is to recognize that 75/3 times 4=100 so
75%=180
divide 3
25%=60
times 4
100%=240
the real way is proportions
75:180 =100:x
75/180=100/x
multiply both sides by 180x
75x=18000
divide 75
x=240
origitnal price=$240
