<span>a number x is multiplied by 9 : 9x
</span><span>a number x is multiplied by 9, the result is 35 : 9x = 35
solve for x
9x = 35
x = 35/9
x = 3 8/9 (3 and 8/9)</span>
Answer:
11/9
Step-by-step explanation:
Answer:
1. D
2. x=65
Step-by-step explanation:
Hi!
Your answer is D because 78 is 120% of x
120% in decimal point is 1.2.
So it's 1.2x is the same as 120% of x
For question 8:
1.2x=78
Isolate x by divide 1.2 on both sides
78/1.2=65
If (x+5) is a factor the equation will equal zero when x=-5 so
3(-5^2)+14(-5)+k=0
75-70+k=0
5+k=0
k=-5
