So, first lets define our variables:
let x = the number of dimes
let y = the number of nickels
so our first equation would be x+y = 16
Since dimes are 10 cents and nickels are 5 cents the next equation would be as follows:
.10x+.05y = 1.35
now change the first equation so y = -x+16
now substitute:
.10x+.05(-x+16) = 1.35
then multiply so you get .10x+-.05x+0.8=1.35
combine like terms and you get .05x+0.8 = 1.35
then subtract 0.8 from both sides and you get .05x = 0.55 then subtract
and you get x = 11 then substitute 11 for where x should be and you should get y = 5
So, you have 11 dimes and 5 nickels
37 and 1 / 4 = 37 * 6 = 74 * 3 = 222
1. x^2 + x - 90
2. (x+10)(x-1)
3. x= -10 and 1
Answer:
547
Step-by-step explanation:
Just subtract 813 - 266.
pls mark me as brainiest
Answer:
Step-by-step explanation:
