345 Answered Questions for the topic Pre-Algebra

-3=7(y-9/7) i need help

i need the answer to this problem

11/26/19

The point (-9, -10) is in the _____ quadrant.

how do i figure this out

11/05/19

6320/1000 in decimal notation

11/05/19

6/10 as a decimal notation

11/05/19

64.00197 as a mixed number

11/01/19

Pls help me with my homework I need help

The cold water faucet can fill the tub in one half-hour. The hot water faucet can fill the tub in one hour how long will it take to fill the tub with both faucets running? Justify your answer

10/17/19

How can you get 4.5 from the equation 3(3x-7)-5x=-39 when it's clearly wrong?

I took a test yesterday about Algebra 1 and got this wrong while getting an answer of 4.5. I've been trying to remember what I did yesterday because I'm trying to make a reflection and need to get... more

10/15/19

A math question I have no clue how to solve

You need a 70% alcohol solution. On hand, you have a 260 mL of a 20% alcohol mixture. You also have 90% alcohol mixture. How much of the 90% mixture will you need to add to obtain the desired... more

09/12/19

You collect a total of $80 in donations from three people. The three donations are in the ratio 3 : 3 : 10. How much do the two people donate that donate the same amount?

How much greater is the largest donation than the smaller donations? (question continued)

09/11/19

find the slope please

g(x)= 2x+8 f(x)= 1/6x-3 f(x)= 2 f(x)= 1

09/02/19

what scores are needed

Brooke has test scores of 75,80,72, 65, and 90. What score does Brooke need on the final in order to have an average score of​ 80?

08/25/19

please help me with this problem

Find the equation of the horizontal line that contains the point (7,−8). Express the equation using either the general form or the​ slope-intercept form of the equation of a line.

08/25/19

please help me with this problem

Find the equation of the horizontal line that contains the point (7,−8). Express the equation using either the general form or the​ slope-intercept form of the equation of a line.

08/13/19

solve an inequality

In your​ class, you have scores of 84, 92, 83 and 89 on the first four of five tests. To get a grade of Upper B, the average of the first five tests scores must be greater than or equal to 80 and... more

07/03/19

If (7.6 x 10^n)(3.5 x 10^3) = 2.66 x 10^9, what is the value of n?

If (7.6 x 10n)(3.5 x 103) = 2.66 x 109, what is the value of n?

07/03/19

Rectangle RSTU is shown below. The rectangle was dilated by a scale factor of 1/3. After the dilation, what is the perimeter of R'S'T'U'?

The coordinates of RSTU areR ----> (-5,4)S ----> (4,4)T ----> (4,-2)U ----> (-5,-2)

07/02/19

HOW DO I BREAK THIS QUESTION DOWN?

Jessica’s Spanish test scores are 98, 74, 88, 83, 91, and 85. Find the range, median, first and third quartiles, and interquartile range of her scores. Use the measures of variation to describe the... more

07/01/19

What is the result when 6x^2-13x+12 is subtracted from -3x^2+6x+7?

What is the result when 6x2-13x+12 is subtracted from -3x2+6x+7?

06/28/19

What is the scale factor and size for each channel when this feature is turned on?

Aaron bought a new television that has a 92 in. 76 in. screen. It has a feature that splits the screen to allow him to watch 4 channels at once. What is the scale factor and size for each channel... more
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