Answer:

Step-by-step explanation:

5(4) – 5 = 15
So the answer is A) x = 4
45% - 144
100% - x
/cross multiply/
45x = 144·100
45x = 14400 |divide both sides by 45
x = 320
Answer: 45% of 320 is 144.
Answer:
3.5
Step-by-step explanation:
2(5x-9)=17
10x-18=17
+18
10x=35
÷10
x=3.5
or
2(5x-9)=17
÷2
5x-9=8.5
+9
5x=17.5
÷5
x=3.5