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# I am having trouble figuring out: 9x^2 + 18x + 5 =0

I cannot figure out how to get x from this problem. Thanks a lot!

# A coffee merchant combines coffee that costs \$7 per pound with coffee that costs \$3.60 per pound. How many pounds of each should be used to make 26 lb of a blen

A coffee merchant combines coffee that costs \$7 per pound with coffee that costs \$3.60 per pound. How many pounds of each should be used to make 26 lb of a blend costing \$6.15 per pound?

# How to factor 2x^2+5x-3?

I have the question factor this problem, 2x^2+5x-3. And I was told to multiply 2 by -3, which the answer is -6. And then add the factors of -6 to get the middle number. Which -1 plus 6 is 5 for...

# write as a single logarithm with a coefficient of 1

Write log_2?(x-1)+log_2?(x+1)-log_2?(x^2-1) as a single logarithm with a coefficient of 1

# what is x + y = 3

How do you find the answer for x + y = 3

# the weight W of an object is 9.8m/s^2 times the mass of the object m

Write and graph a direct variation equation that relates the v ariables

# Use a matrix approach to solve the system

x − 3y − z = 13 3x + y − 4z = −13 −2x + 5y + 3z = −19   x = ? y = ? z = ?   (If the system has infinitely many solutions, express your answer...

# what is 9 + w/4 =-5

I am doing pre Algebra and I am a little confused

# Paul travel a total distance of 8 km in 54 minutes by running and walking.

Paul traveld a total distance of 8 km in 54 minutes by running and walking. He  then ran  10 km to the power of negative 1  , he then walked the remaining distant at 5 km to the power...

# Alice gave bill 15 more of her tapes out of x, while bill had 10 already. what is the value of x

Alice has x tapes and Bill has 10 more tapes than Alice. Alice gives Bill 15 more of her tapes. Bill now has twice as many tapes as Alice now has. Write an algebraic equation to show this data and...

# how do i solve this equation l=2c+11(D+d)/7+9D-d)^2/4C

I DON'T KNOW HOW TO SOLVE THIS PROBLEM

# Need to Find X

y = (x * .4175) + x where y = 874.90

# formula:interes=principle x rate x years

I am trying to solve a problem and would like your help,, formula: I=prt, interest=\$360,rate=6%,time=3years, principal= _??

# solving Word Problems

By air, the distance from Melbourne, Australia, to Cairo, Egypt, is 2338 miles more than the distance from Madrid, Spain, to Bangkok, Thailand.  If the total of these distances is 15,012 miles,...

x3=x

# 7+x=-3Show me the way how to calculate this.

I know x=-10, but I want to know the way to get there

# (-3,9) and (0,7)

find slope line for given point

(x7w)/x²w?

# What is the value of y in 3/5(y/8+1/4)=9/16?

I keep retrying this problem on paper, but when I check it, the answer is always wrong...

# 2 equations

A student has some \$1 bills and some \$5 bills totaling \$47. What 2 equations using substitutions can be used to solve?