Answer:
- 65 -3x = 55 -2.5x
- 20 periods
- $5
Step-by-step explanation:
The value of the first card starts at $65 and decreases by $3 for each of x periods. Its value is ...
65 -3x
The value of the second card starts at $55 and decreases by $2.50 for each of x periods. Its value is ...
55 -2.5x
The equation that can be used to find x that makes the values equal is ...
65 -3x = 55 -2.5x
__
The solution can be found by adding 3x-55 to both sides of this equation.
10 = 0.5x
Multiplying by 2 gives ...
20 = x
After 20 30-day periods. the cards will have the same value.
__
The value after 20 periods is ...
65 -3×20 = 65 -60 = 5
Both cards will have a value of $5 when they have the same value.
17) -3 + x > 19
x > 19 +3
x > 22
18) -3 <_ 6x - 1
(Here, please note that <_ is lesser than or equal to and >_ is greater than or equal to)
6x >_ -2
x >_ -1/3
19, 20, 21) now onward Ima type just the answers -_-
x > -7/2
x < 12
x<_ 2
| \
| \
| 16 \
| \
|______\
12
Envision this as a right triangle, with one leg of 12 miles, and the other 16 miles. Solve using the Pythagorean Theorem a²+b²=c²:
12²+16²=c²
400 = c²
20=c...they live at least 20 miles from each other.
Answer:
The answer is > because 9.63 is greater than 1.82
Step-by-step explanation:
9.63 is a larger number than 1.82
