I've tried solving this but can't seem to find the equation or expression to work this problem out. Please help me.

I've tried solving this but can't seem to find the equation or expression to work this problem out. Please help me.

I need help with this...

How to factor? 3t2-8t+4

I need help with this question please appreciate your time helping me

X-Y=11 5x+y=9 ...

Arctic antifreeze is 18% alcohol and frost no more is 10% alcohol. How many liters of each should be mixed to get 20 liters of a mixture that is 15% alcohol?

The population of a certain inner-city area is estimated to be declining according to the model P(t) = 531,000e−0.013t, where t is the number of years from the present. What does this...

A family has two cars. The first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. During one particular...

6x+0=0

A person writes down all the numbers from 1 to 999 inclusive. How many times was the digit 8 written?

At 3:00 pm they are 75 miles away; they checked again at 4:30pm and were 15 miles away. a) on average, how fast were they traveling? b) write an equation that gives...

I have a hard time with these linear equations and this question makes no sense

How long will it take for the value of the car to be ½ of its purchase price? Show all steps to solve algebraically The value of a car, in thousands of dollars,t years after it was purchased can...

Write and solve a system of equations for the following situation.

How much money should you invest now at an annual interest rate of 2.5% compounded monthly if you want $45,000, 20 years in the future? We have to use the formula F=P(1+i)^n...

Bill and ashley went to the craft shoppe to purchase supplies for a science project. BIll purchased 3 markers and 8 folders. ashley purchased 5 markers and 3 folders. bills ordered totaled $9...

C= (V)/ sqrt((1)-((Ra/ Rf)2)) 1. Using the above equation, solve for Ra, the aging rate of the astronaut. Show all the algebraic steps. HINT: Start by letting and setting up a proportion...

A guy walks into a store and steals a $100 bill from the register without the owners knowledge. He comes back 5 minutes later and buys $70 worth of goods with the $100 bill the owner gives him $30...

This is a question on my homework that I am having trouble getting equations for.

A birthday party is being held for 20 people at an arcade. It costs $5 a person to provide food for everyone, and each game costs $1 to play. Assume that each person at the party plays the same number...

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