Algebra Answers

it cost $10 to go to the movies. sarahs mom gave her $60 and told her she could invite friends to go see the hunger games when it came out. up to how many friends could sarah have invited?

a baker in 70 minutes iced 40 cupcakes and in 49 minutes iced 28 cupcakes. what is the constant of proposinalty

1.There are 40 marbles in a box of which 25 are red marbles. How many marbles are green

The sum of the squares of the digits in a 3digit number is 98.

The sum of the first digit is increased and the last digit is the

middle digit. If the digits were reversed in order, the number

is increase by 198. What is the unknow number?

The sum of the digits of a three‐digit number is 14. The unit’s

digit is half the ten’s digit. When the digits are reversed the

resulting number is 198 more than the original number.

What is the original number?

Ana is 24‐year old when her son is born. In how many years

will Ana be thrice as old as her son?

Find the two consecutive integers that have a sum of 39.

Four years ago, the sum of the ages of Bill and Jane was 45.

Six year from now, twice jane’s age will be 28 more than

Bill’s age then. How old is jane now?

John can finish a painting job in 2 days. Peter can finish the

job in 3 days. Danny can do the job in 6 days. How long will

it take all of them together to finish the job?