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Algebra problems

find the following and simplylify completey.

12x+(-4)+42=17x+8

if 7.6 plus 1.4 times a number quals the sum of the number 64.8 what is the number?

Which measure of central tendency is the middle number in the data when the numbers are arranged in order?   A. mean   B. mode   C. range   D...

if sinA , CosA and tanA are In G.P then Cos3 A+ cos2 A is equal to ?

ratios and proportions

You have to use 3.14 for Pie.

negative nine tents divided by (eleven thirds multiplied by three fifths)equals

ratios and proportions

I am asking for help on math. How do i solve this math word problem?

Let X be given by its distribution function F(x), such that F(x) = 0 if x ≤ 0 F(x) = x^2/4 if 0<x≤2 F(x) =1 if x>2   a)Graph the distribution function F(x) b)Graph...

An 18 – Karat gold necklace weighs 24 grams: 18 grams of pure gold and six grams of metal alloy. The cost of the necklace is \$1200. There is a matching bracelet, weighing 10 grams. a...

ratios and proportions

I have 1277 calls that are 2 minutes each, and I pay \$191.55, what is my cost per minute?

hint x/5 = 1/5x