Dividing by 2 is the same as multiplying by 1/2.
2462 * 1/2 = 1231
On the left side, distribute the 2 to x and -3 so the left side should look like 5x+2x-6.
on the right, distribute the -2 to x and -1 so the right side should look like -2x+2.
combine like terms on the left to get 7x-6=-2x+2
add -2x from the right side to the left side to make the equation 9x-6=2 now it's a two step equation.
add 6 to 2 to get 9x=8. divide by 9 and x=8/9.
Take the totally needed to buy it, put the amount you have and then add but substitute for a variable the amount needed.
Answer:
1,000
Step-by-step explanation:
The probability of getting a certain bill without replacing are as follows:
The probability of getting a five dollar bill is 5 over 14.
The probability of getting a ten dollar bill is 6 over 13.
The probability of getting a twenty dollar bill is 3 over 12.
