Answer:
Sample Response
Step-by-step explanation:
He is incorrect because if you substitute x for 37 you will get the equation 8×37+200. 8×37=296 +200= 496. Since it is not greater or equal to 500 the inequality is not true.
Answer:
7-4g
Step-by-step explanation:
let the number =g
four times the number = 4×g = 4g
seven decreased br four times the number= 7- 4g
therefore, the answer = 7-4g
Answer:
8-(5-x)=2x-8 ⇒ common difference
Step-by-step explanation:
5-x,8,2x
to find the arithmetic difference of the progression
8-(5-x)=2x-8 ⇒ common difference
and solve for x
8-5+x=2x-8
3+x=2x-8
x=11
Answer:
15x^4+2x^3-8x^2-22x-15
Step-by-step explanation:
Answer: It will take Damon 6 weeks to save the money he needs to buy the snowboard
Step-by-step explanation:
First, let's see what the problem is giving us:
-The variable X will represent the number of weeks it will take Damon to save the money he needs.
- Damon has $40
- Damon is going to safe $20 weekly
- The snowboard costs $160
Therefor:
Our equation will be: $40 + $20X = $160
Step 1
We need to isolate the variable by subtracting in both sides of the equation 40 in order to maintain the equality.
40 - 40 + 20X = 160 - 40
This will let us with 20X = 120
Step 2
We have to isolate the variable again, but this time (because the variable is being multiplied by 20) we have to divide on both sides of the equation.
20X/20 = 120/20
Therefore: X=6
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