Rabie

Joan is three years younger than Martin. How old will Joan be when she is 4/5 his age?

A gasoline gauge register 1/8 full.After purchasing 12 gallons of gasoline it registers 7/8 full. What is the capacity of the tank (in gallons)?

After 75 gallons of oil are removed from a cylindrical thank, its level is lowered from 1/6 to 1/7 of its capacity. How many gallons should now be added to the tank to fill it?

35. If 1<6n<66, and n is a positive integer, what is the greatest possible value for n? A.9 B.10 C.11 D.12 E.13

If n is positive and n^2=57, between which two number does n lie? A.5 and 6 B.6 and 7 C.7 and 8 D.8 and 9 E.9 and 10

William solves the equation 5(3x-2)=15x-2. How many solutions does he find? A.0 solutions B.1 solution C.2 solutions D.Infinitely many solutions I'm only up to making it to: 15x-10= 15x-2 I was also wondering if I did anything wrong.

25. The Great Pyramids weigh 6x10^9 kilograms. The Space Shuttle weighs 2x10^6 kilograms. How many times heavier are the Pyramids than the Space Shuttle? A.The Pyramids are 3 times heavier than the space shuttle. B.The pyramids are 30 times heavier than t...

29.Paige and Brooke make iced tea. Paige makes 18 ounces of iced tea that is 7% sugar. Brooke makes 10 ounces of iced tea that is 1% sugar. They wanted to combine their tea to have 12 ounces of iced tea that is 3% sugar. How many sugar. How many ounces wi...

You are riding your bike at a constant speed of 30 feet per second. A friend uses a stopwatch to time you as you are riding along a city block that is 240 feet long. 1. Make a table to represent the situation where the independent variable is time and the...

One number is 6 more than another. The sum of the numbers is 30. Find the numbers.

The sum of two numbers is 24. The difference of the numbers is 16. Find the numbers. This is what I have so far: x+y-16=24

a+b+c=28 b= a+3 I plugged in the b but got stuck on 2a+3+c. What I did: a+a+3+c=28 2a+3+c=28, but what do I do next to solver this linear equation?

I forgot the third equation last time so the full question is a+b+c=28 b=a+3 a+3+b+10c=131 I only got up to the part where I plug in the b but I don't know what to do with the other variables.

I got A, is this right?

There would be 0 solutions?

Thank for you help.

Wait, for the first one or the second one?

I got that too, but since this is a puzzle, there are 2 numbers and there are none that are (12,12)

Nevermind about this question, I solved it myself.

Oh the third equation was a+3b+10c=131

What is the total amount of edging that would be required to cover all edges of a rectangular prism measuring 10 cm by 15 cm by 30 cm?