Answer:
x = -6
Step-by-step explanation:
-5x+1=31
- Subtract 1 from both sides of the equation.
-5x = 30
x = -6
Answer:
1. 4x ≤ 25
⇒ x ≤ 6.25
2. x + 4 < 25
⇒ x < 21
3. x + 4 ≥ 25
⇒ x ≥ 21
4. 4 + x ≤ 25
⇒ x ≤ 21
Step-by-step explanation:
1. 4x ≤ 25
⇒ x ≤ 6.25
2. x + 4 < 25
⇒ x < 21
3. x + 4 ≥ 25
⇒ x ≥ 21
4. 4 + x ≤ 25
⇒ x ≤ 21
Answer:
2.970600004839 × 10^5
Step-by-step explanation:
First, we add up these 2 numbers.
297,060 + 0.0004839 = 297060.0004839
Then, we convert that into scientific notation.
297060.0004839 = 2.970600004839 × 10^5
Finally, we check if it's right.
10^5 = 100000
2.970600004839 * 100000 = 297060.0004839
Hope this helps.
Given that total volume of the solution = 12 quarts
Let volume of water added = x quarts
Then volume of 30% vinegar = (12-x) quarts
Given that x quarts of 0% water is mixed with (12-x)quarts of 30% vinegar to obtain 12 quarts of 25% solution
So we can write equation as:
[0% of x] + [30% of (12-x)] = [25% of 12]
or 0x + 0.30(12-x) = 0.25*12
or 0 + 3.6-0.30x = 3
or -0.30x = 3-3.6
or -0.30x = -0.6
x=2
Hence answer will be 2 quarts of water.
