Answer:
15.5 because you have to take away some point
Step-by-step explanation:
you can do 15.8 +5.3 and that would make 21 - 15 and makes 6 so you can round 15.8 to 16 and then you subtract to make 10 then you add 5
F(x) = -3.
x = f⁻¹(-3)
x = f inverse of (-3).
Answer:
Equation: 5c + 7 = 2
Solution: The number is -1.
Step-by-step explanation:
The unknown number is c.
"the product of a number and 5" is 5c
"Seven more than the product of a number and 5" is 5c + 7
"Seven more than the product of a number and 5 equals 2" is 5c + 7 = 2
The equation is
5c + 7 = 2
To solve, we first subtract 5 from both sides.
5c + 7 - 7 = 2 - 7
5c = -5
Now divide both sides by 5.
5c/5 = -5/5
c = -1
Answer: The number is -1.
