Answer:
Step-by-step explanation:
The total tip left by the boys amounted to 15% of the pre-tip bill. Let p represent the pre-tip bill.
Then 0.15p = $10.50 (p is the pre-tip bill and 0.15 represents 15% of that)
Dividing both sides by 0.15 results in an expression for p:
p = $10.50 / 0.15 = $70.
Recall that p is the sum of the costs of the individual meals. If this total was $70 and Michael's dinner cost $40, Elijah's dinner must have cost
$70 - $40, or $30.
It is easiest to simply just substitute any of the choices into the original equation and see which one satisfies the equation.
Given the equation: 3 * |5 + x| = 12
Using choice A. x = 7
3 <span>* |5 + 7| = 12
</span>36 =/= 12
Using choice B. x = 1
3 <span>* |5 + 1| = 12
</span>18 =/= 12
Using choice C. x = -9
3 <span>* |5 + -9| = 12
</span>12 = 12
Therefore, the correct answer is C. -9
The answer would be 101,447 points.
10 should be correct , hope this helped
The answer is: D) 115
The explanation is shown below:
1. You have that the frequency with which a cricket chirps varies directly with the temperature, which you can express it as following:
Where is the frequency with which a cricket chirps, is the temperature and is the constant of proportionality.
2. If the cricket chirps 100 times per minute in 80° weather, you can calculate as below:
3. Therefore, the frequency in 92° weather is: