The equation is as read; 17.2 + 12.9 should equal 30.1.
Just add [looks like you subtracted instead] straight down getting 301 then moving the decimal down too.
X = number of dimes
x + 2 = number of nickels
3(x + 2) = number of pennies
10x + 5(x + 2) + 3(x + 2) = 52
10x + 5x + 10 + 3x + 6 = 52
18x = 36
x = 2
x = 2 (number of dimes)
x + 2 = 4 (number of nickels)
3(x + 2) = 12 (number of pennies)
Check:
2(10) = 20 cents in dimes
4(5) = 20 cents in nickels
12(1) = 12 cents in pennies
Total = 52 cents
The answer is 18
Working out:
1 1/2 x 4 =6
6 x 3=18
Answer:
25
Step-by-step explanation:
50% is half of something. half of 50 is 25.
Also there is another way to do it. 50/100 = 50%.
50/100 x 50 = 2500/100 = 25. or 50/100 = 1/2. 1/2 x 50 = 50/2 = 25.
