Answer: Which of the following expressions cannot be factored? Explain.
a. 6 + 3x
b. 7x + 3
c. 15x + 10
d. 30x + 40
Step-by-step explanation:
Answer:
7(1-8n)=0
We simplify the equation to the form, which is simple to understand
7(1-8n)=0
Reorder the terms in parentheses
+(+7-56n)=0
Remove unnecessary parentheses
+7-56n=0
We move all terms containing n to the left and all other terms to the right.
-56n=0-7
We simplify left and right side of the equation.
-56n=-7
We divide both sides of the equation by -56 to get n.
n=0.125
Answer:
2x = 256
Step-by-step explanation:
Your problem → 82.5 + 8(0.25x) = 338.5
82.5+8(0.25x)=338.5
⇒-256+80.25x=0
⇒2x-256=0
⇒2x=256
⇒x=256/2
⇒x=128
Answer:
25%, 1/3, .40, 3/5
Step-by-step explanation:
another way to look at this problem is, 25%, 33%, 40%, 60%
divide 9 by 10. (the numerator and denominator) = 9 / 10 = 0.9
add the 0.9 to the 3 so, 3 + 0.9 = 3.9
answer: 3.9
