Step-by-step explanation:
AC = AB + BC
25x - 19 = 9x + 7 + 5x + 7
25x - 19 = 14x + 14
25x - 14x = 14 + 19
11x = 33
x = 33/11
x = 3
AB = 9x + 7
= 9(3) + 7
= 27 + 7
= 34
Answer:
1c, 5c, 25c and 1 dollar
Step-by-step explanation:
With 4 coins of 1c : 4 cents
4 coins of 5c: 20 cents
4 coins of 25c: 1 dollar
4 coins of 1 dollar: 4 dollars
So, 4c + 20c + 1 dollar + 4 dollars = 5.24 dollars
In this case were going to solve the question using "simple interst", so since were looking for the interest it will be I= PxRxT (I stands for "interest", P stands for "principal", R stands for "rate" and T stands for "time")
so P is $3000
R is 2%
and T is 3 years
so we'll have to turn our rate into a decimal which is 2% = .02
now to start the problem:
I= (3000)(.02)(3) (means 3000 x .02 x 3)
I= $180 is your answer
Answer:
12
Step-by-step explanation:
6 + 7n = 90
n = number of book reports
6 + 7n = 90
7n = 84
n = 12
12 book reports
