1940 = 0.05x t 0.07 ( 30,000-x) Last year Keith had 30,000 to invest. He invested some of it in an account that paid 5% simple interest per year. And he invested 7%?simple interest per year. After one year he received a total of 1940 in interest. How much did he invest in each account?

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

1.30

step-by-step explanation: