Let the price of the computer = X
Store A is selling it for 25% off, so they are selling it for 75% of the original price, so you have 0.75X
Store B is selling it for 180 less the original price, so you have X - 180
Now set both equations to equal and solve for x:
0.75x = X-180
Subtract 1X from each side:
-0.25x = -180
Divide both sides by -0.25:
x = -180 / -0.25
X = 720
The original price is $720
check:
720 x 0.25 = 180
Answer:
1 hour
Step-by-step explanation:
No. of pages print in 1.5 hours = 900
dividing LHS and RHS by 1.5 so that we get 1 hour in LHS
no. of page print in 1.5/1.5 (1) hours = 900/1.5 = 600.
Thus, it takes 1 hour to print 600 pages.
Given that we have to find how
long will it take her to print a book of 600 pages.
Answer is 1 hour.
Answer:
1
Step-by-step explanation:
Three points define 1 plane.
that would be 20 miles per hour. If in 8 hours you're going 160, then divide 160 by 8 and you'd get 20. Each hour is 20 miles. or 8 times 20 is 160. Your answer is 20 miles per hour
Remark
A
You can do the same thing with a program called Desmos. Using this program, I've put A and B (the graphs) in Desmos and attached it to this Answer.
You could just do the same with your graphing calculator if you have one.
The problem is that my graphing calculator won't draw the blue line which is x = - 2
So go to Desmos and put in 2 graphs. the first one is y = - 1/2 x + 3 in red
The second is x =- 2. These are entered on the left of Desmos.
The blue line is x = - 2. You notice that the intersect point is (-2,4). Run your finger straight across until you hit 4. That's all you have to do for the A part.
B
The question has 3 blanks. The first 2 come from the question directions to see if you read those directions. Always a good idea to do that.
first blank is x = - 2
second blank is x = - 2
Third blank is - 7
The red line is y = 3/2 x - 4
The blue line is x = -2