78% of what number is 22?

28. 21 or 28.2 or 28

Step-by-step explanation:

Since 22 is equal to 78% percent, then x is equal to 100%

78% = 22

100% = x

Cross múltiply

100(22) = 78x

2200 = 78x

÷ 78. ÷78

28.205 = x

Depending on what your rounding off to, nearest tenth, hundreths, or whole number

tenth = 28.2

whole number= 28

hundreth= 28. 21

27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2