2,549 Answered Questions for the topic prealgebra

#### A jar contains n nickels and d dimes. There are 20 coins in the jar, and the total value of the coins is 1.40. How many nickels and dimes are in the jar

which is x and which is y.

#### 8th Grade Pre-algebra Word Problem

Karinne hit 4 more home runs than half the number of hone runs Lu hit. Together they hit 10 home runs. Let x represent the number of home runs Lu hit. Write an equation to represent the situation.

#### Strain A had 9000 cells and decreased at a rate of 3000 cells per hour. Strain B started with 4000 cells and decreased at a rate of 2000 cells per hour.

When will the strains have the same number of​ cells? Give the ordered pair please!

#### Translating inequalities

The difference of 8 and six times a number is a minimum of sixty-eight

#### Algebraic Substitution

A hawk takes off from the ground ascending 80 feet per minute. At the same time an eagle is flying at 1200 feet and descending 70 feet per minute. After how many minutes will the 2 birds be at the... more

You sold 100 tickets to a high school concert. Student tickets are $4 and general admission tickets are$6 for a total of \$440. How many of each type of ticket did you sell?

#### I do not understand this

4 USB sticks and 1 compact disk have a total capacity of 9 gigabytes.5 USB sticks have 9 gigabytes more capacity than 1 compact disk.Find the capacity of 1 USB stick and the capacity of 1 compact... more

#### Math question need help

A motorboat travels 165 Kilometers in 5 hours going upstream. It travels 305 kilometers going down stream in the same amount of time. What is the rate of the boat in still water and what is the... more

#### Find the value of c for which the function is continuous for everywhere:

f(x)=ln(x+c),x<0f(x)=2(e^x),x\ge 0

#### How am I to find the slope, y-intercept and GRAPH it? PLEASE ANSWER SOON!!! 😬 😬 😬 😬

My teacher showed us that:if x=1 and y=-1, 0, 1-1-0-11-2 2 My result was undefined.My question is how are both sides equal? Let's say that x=4 will Y= -4, 0, 4? I don't know how to graph or solve... more

10d

#### If y=-12 when x=6, then what is x when y=26

Y varying directly as X. In a direct variation equation.

12d

#### find a reciprocal

What is the reciprocal of 4a?Is it 1/4a (because 4a = 4a/1)or is it1a/4 (which is = 1/4 times a)?

12d

12d

#### Four less than the product of 6 and a number equals 8

Four less than the product of 6 and a number equals 8

12d

#### I am stuck with writing ratios as a fraction

My teacher gave me this question and said you need to understand these types of questions and I have no clue about this question.Dan gets pic 'n mix when at the cinema and makes his bag up with 3... more

15d

#### Trains and math

A train travels 25 miles in 20 minutes. What is the trains speed in mph?

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