on the 1st problem i dont understand how x is being added when the sign is subtraction
d+3(d-4)=20 please explain
x-(12-x)=38 please explain
A college bookstore ordered six boxes of red pens. The store sold 32 red pens last week and 35 red pens this week. Five pens were left on the shelf. How many pens were in each box?
draw a box-and-whisker plot for the following set of data. 62,76,41,87,60,42,47,69,65.
Yolanda is 180 centimeters tall. How many meters tall is that?
HOW MANY GRAMS OF ice at 0oc can be melted into water at 0oc by the additon of 75.0 of heat ? hfus = 6.01 kj/mo
a 8.20 kg particle P has a position vector of magnitude 6.90 m and angle θ1 = 42.0° and a velocity vector of magnitude 6.70 m/s and angle θ2 = 25.0°. Force , of magnitude 8.90 N and angle θ3 = 28.0° acts on P. All three vectors lie in the xy plane. A...
the volume of a gas is 250 mL at 350 kPa pressure. what will the volume be when the pressure is reduced to 50 kPa, assuming the temperature remains constant?