James and Kathryn together had $190 in a savings bank. The amount in James's account was $30 more than 3 times the amount in Katherine's account. How much had each? Algebra

A store owner bought a painting for $120. She is selling it for $190. What is the percent markup on the painting? Prealgebra

The mass of water is 190.4 g. > This is an exercise in the Law of Conservation of Mass. The equation for the reaction is color (white) (mmmmml)"4NH"_3 + "3O"_2 → "2N"_2 + "6H"_2"O" …

Some very hot rocks have a temperature of #190 ^o C# and a specific heat of #90 J/ (Kg*K)#. The rocks are bathed in #270 L# of boiling water. If the heat of the rocks completely vaporizes the …

Feb 11, 2016 · When decaying by alpha emission a nucleus drops by 4 in mass number and 2 in atomic number and emits a helium nucleus (alpha particle) which has mass number 4 and …

What are the mean and standard deviation of a binomial probability distribution with #n=190 # and #p=7/11 #?

Approx. 190*g... By definition, rho, is given by the quotient.... rho_"density"="mass"/"volume", and thus has units of g*mL^-1-=g*cm^-3... And so we simply rearrange ...

Dec 6, 2015 · #190 * color (blue) (T_"f") - 3800 = -1470 * color (blue) (T_"f") + 117600# #1660 * color (blue) (T_"f") = 121400 implies color (blue) (T_"f") = 121400/1660 = 73.13^@"C"# Now, …

x=+-sqrt(a-v) v=sqrt(a^2)-x^2 Apply square root rule sqrt(b^2)=b. v=a-x^2 Add x^2 to both sides. v+x^2=a Subtract v from both sides. x^2=a-v Take the square root of both sides. sqrt(x^2)=+ …

How many girls were there to begin with? If evan has 10 dimes and quarters in his pocket, and they have combined value of 190 cents, how many of each coin does he have? Using long …