Answer:
d..
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
4 times 8 =32, 32 - 20= 12
Answer:
7 hours
Step-by-step explanation:
The total amount is the flat fee plus the amount per hour times the number of hours
16 + 8h = 72
Subtract 16 from each side
16+8h-16 = 72 -16
8h = 56
Divide by 8
8h/8 = 56/8
h = 7
7 hours
The answer is -.2.5 hope that help
Answer:
C
Step-by-step explanation:
To solve this use the equation
given in the problem and the value y = 50. Substitute y = 50 then solve for x by factoring.
![x^2 -15x - 50 = 50\\x^2 - 15x -100 = 0](https://tex.z-dn.net/?f=x%5E2%20-15x%20-%2050%20%3D%2050%5C%5Cx%5E2%20-%2015x%20-100%20%3D%200)
Find two numbers which multiply to -100 and also add to -15. The numbers are -20 and 5.
So the factored form is (x-20)(x+5) = 0.
Set each factor equal to 0 and solve.
(x-20) = 0 so x = 20.
(x+5)=0 so x = -5.
This means the temperature is 20 degrees C or -5 degrees C. Only 20 is an option. The solutions is C.