loulou

joe and jim are picking oranges in an orange grove.joe can fill his sack with oranges in 20 minutes.Jim can fill his sack with oranges in 30 minutes They need one more sack at the end of the day.Working together,how long will it take them to fill the sack...

one number is 8 less than another .the quotient formed by dividing the higher number by the lower number is 15/11.Find the values of the two numbers

frank can wash the car in 2/3 the time his younger brother,joe,can wash the car.they worked together and washed the car in 40 minutes.how long would it have taken each boy working separately?

the school bought a new copy machine which makes 20 copies per minute.the old machine makes 12 copies per minute.francine needs 100 copies,so she uses both machines.how long will it take to have the copies

If 15.0 grams of C3H6, 10.0 grams of oxygen, and 5.00 grams of NH3 are reacted, what mass of acrylonitrile can be produced assuming 100% yield, what mass of the excess reactants remain? 15g C3H6 (1 mol / 42.08 g) = .35 mol C3H6 .36 mol C3H6 ( 2 mol C3H3N...

1. A. endothermic heat energy has been removed making it cold 2. A. exothermic 3. matching 4. 84 protons 126 neutrons