Answer:
x = 8
Step-by-step explanation:
Step 1: Subtract 5x from both sides.
Step 2: Add 2 to both sides.
Step 3: Divide both sides by 2.
Step 4: Check if solution is correct.
Therefore, x = 8.
Answer:
y=3/2(x) -1, or y = 1.5x - 1
Step-by-step explanation:
To write the equation in slope-intercept form, you have to determine the y-intercept for the line. Since you have the slope and at least one ordered pair, you can find this by substituting the points and slope into this formula:
y=mx+b.
For this particular line, you would write:
-8 = 3/2(-6)+b
-8 = -18/2 + b
-8 = -9 + b
add 9 to both sides to isolate the b
-1 = b.
Now that you have the answer for b (-1), you can write the equation as:
y=3/2(x) -1
Answer:
He can buy 3 plants
Step-by-step explanation:
$27 is the total amount of money he can spend, if each plant costs $9 the equation would be like this:
9x = 27
Divide 27 by 9 because division is the opposite operation to multiplication
x = 3
Answer:
81
Step-by-step explanation:
Answer:
D and E
Step-by-step explanation:
Using the rule of radicals
⇔ ![\sqrt[n]{a^{m} }](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Ba%5E%7Bm%7D%20%7D)
Given
= (![\sqrt[7]{3}](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7B3%7D)
)^4 → D or
= ![\sqrt[7]{3^{4} }](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7B3%5E%7B4%7D%20%7D)
= ![\sqrt[7]{81}](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7B81%7D)
→ E
