Answer:
A. y=2
x+y=2.5
b. x=2 or 5
y=2 or 5
I don't know which on equals 2 and which equals 5, but 5 and 2 are the answers
Step-by-step explanation:
a. 2x0.5=1
b. 2+5=7 and 2x5=10
Answer:
What did you do? What is this mess but thanks for the points
Step-by-step explanation:
Answer:
Randy has eight $5 bills and nine $1 bills
Step-by-step explanation:
Randy needs $50.00
And we know that he his only $1.00 short, so he has $49.00
let's define:
x = number of $1 bills that he has
y = number of $5 bills that he has.
then:
x*$1 + y*$5 = $49
We know that he has one more $1 bills than $5 bills.
we can write this as
x = y + 1
So we have a system of two equations and two variables:
x*$1 + y*$5 = $49
x = y + 1
First we can see that the variable "x" is isolated in the second equation, now we can replace that in the other equation:
x*$1 + y*$5 = $49
(y + 1)*$1 + y*$5 = $49
now we can solve this for y.
y*$1 + $1 + y*$5 = $49
y*($1 + $5) = $49 - $1 = $48
y*$6 = $48
y = $48/$6 = 8
He has 8 $5 bills
and we know that:
x = y + 1
x = 8 + 1 = 9
he has 9 $1 bills.
The picture is to blurry sorry
Answer:
an intervening time
Step-by-step explanation:
