Answer:
x=1.5
Step-by-step explanation:
- 5=10(5x-7)
- 0.5=5x-7
- 7.5=5x
- x=1.5
Answer:
B) Only (-3, 5)
Step-by-step explanation:
Slot in the options into the equation
(-2, 4),
Compare with (x, y)
x = -2, y =4
y =-3x - 4
4 =( -3 * -2 ) - 4
4 = 6 - 4
This is not true hence, option A is wrong
Using (-3, 5)
x = -3, y= 5
5 = (-3*-3) - 4
5 = 9 - 4
This is correct hence, option B is correct
Option c is wrong because (-2,4) is not a solution to the equation
Option D is wrong because option B is correct
Answer:
18.9 or 23.625
Step-by-step explanation:
Answer:
f(5) = 17
Step-by-step explanation:
f(x) = 3x+2
f(5) means let x =5
f(5) = 3*5+2
= 15+2
= 17
5.5(20 + 18.5)
5.5(38.50)
211.75