Answer:
9
Step-by-step explanation:
- so lets use a variable for this so if this (_____) = x
you're equation would be x-11=(-2)
2. Add 11 to both sides
x-11=-2
x-11+11=-2+11
3. x=9
4. 9-11=-2
9-11+11=-2+11
Therefore your answer is 9
The number of 30- period until the value if the give card be equal is 20 30- day period
<h3>How to write and solve equation</h3>
let
- Number of 30- day period = x
Card 1:
50 - 2x
Card 2:
40 - 1.50x
50 - 2x = 40 - 1.50x
50 - 40 = -1.50x + 2x
10 = 0.50x
- divide both sides by 0.50
x = 10/0.50
x = 20
In conclusion, it will take 20 30- day period until the value of the given card can be equal.
Complete question:
Tavon has a $50 gift card that loses $2 for each 30-day period it is not used. He has a $40 card that loses $1.50 for each 30-day period it is not used.
Read more on equation:
brainly.com/question/2972832
#SPJ1
Consider the slope-intercept form, y=mx+b, where m= the slope, and b= the y-intercept. Here, 4 is b and -2 is m. Therefore, the slope is -2.
⓵ You need to solve the left side first in order to isolate the × and find it’s value :
-7× + 6 = 27
-6 -6
↓
-7× = 21
÷-7 ÷-7
↓
× = -3
If you find it too difficult to divide a number by a negative, just divide 21 by 7 and always remember that when dividing, when the signs are different the answer is negative. So knowing that you could just divide 21 by 7, which is 3, and add a negative sign in front!
I hope this helped, if there’s anything let me know! ☻
Answer:
8
Step-by-step explanation:
don't ask how I got it I looked it up
