Answer: 62
Step-by-step explanation:
1/5 = 0.2
310 * 0.2 = 62
D because its true answer :)
Answer:
C and D
Step-by-step explanation:
<h2>
Explanation:</h2>
Let's use a trial and improvement method to find this solution.
Step 1. Let's choose x = 8.5
Substituting into the equation:
![(8.5)^2+ 3(8.5) - 94=0? \\ \\ 72.25+25.5-94=0? \\ \\ 3.75\neq 0](https://tex.z-dn.net/?f=%288.5%29%5E2%2B%203%288.5%29%20-%2094%3D0%3F%20%5C%5C%20%5C%5C%2072.25%2B25.5-94%3D0%3F%20%5C%5C%20%5C%5C%203.75%5Cneq%200)
Step 2. Let's choose x = 8.4
Substituting into the equation:
![(8.4)^2+ 3(8.4) - 94=0? \\ \\ 70.56+25.2-94=0? \\ \\ 1.76\neq 0](https://tex.z-dn.net/?f=%288.4%29%5E2%2B%203%288.4%29%20-%2094%3D0%3F%20%5C%5C%20%5C%5C%2070.56%2B25.2-94%3D0%3F%20%5C%5C%20%5C%5C%201.76%5Cneq%200)
Step 3. Let's choose x = 8.3
Substituting into the equation:
![(8.3)^2+ 3(8.3) - 94=0? \\ \\ 68.89+24.9-94=0? \\ \\ -0.21\neq 0](https://tex.z-dn.net/?f=%288.3%29%5E2%2B%203%288.3%29%20-%2094%3D0%3F%20%5C%5C%20%5C%5C%2068.89%2B24.9-94%3D0%3F%20%5C%5C%20%5C%5C%20-0.21%5Cneq%200)
Since the sign of the equation changes from positive to negative when evaluating from 8.4 to 8.3, then x = 8.3 seems to be a reasonable value. Finally, the solution to 1 decimal place is:
<span>The inequality is : 26 + 6b= 2(3b + 4)
On opening the bracket we get,
or </span><span>26 + 6b= 6b + 8
Now, bring the variable terms to right hand side,
or 26 + 6b - 6b = 8
or 26 = 8, which is not possible because 26 can never be equal to 8.
Thus, this inequality has no solutions. </span>