Add 3x to both sides
-3x+10=3x-8
+3x +3x
10=6x-8
+ 8 +8
18=6x
/ / (divide)
6. 6
3=x
Answer:
x=3, y=15
Step-by-step explanation:
We substitute 5x for y, getting 5x = -3x + 24. We add 3 x to both sides, and have a equation like this: 8x = 24. Divide by 8 on both sides, and we know that x = 3. Since y is 5x, y is 5*3, which is 15.
Answer:
The answer is A, a total of 12 students spend 31 or more hours online per month.
Step-by-step explanation:
From the hours of 31 to 65 there are twelve students.
Answer: The inequality solves to x ≥ 42
The graph is shown below
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Explanation:
We have some unknown number x, and we're dividing by 6 to form the fraction x/6. That result is 7 or larger which means we write x/6 ≥ 7
To solve for x, we undo the division. We'll multiply both sides by 6. That's how we get to x ≥ 42
The graph will involve a number line. Plot a closed filled in circle at 42 on the number line. Shade to the right. This visually represents any number that is 42 or larger. The endpoint 42 itself is included in the solution set.
Side note: We would use an open circle if we didn't have the "or equal to" portion for the inequality sign.
The ratio is 4:5
Divide both terms by 4
16/4 =4
20/4=5