x+23+32+47=180
x+102=180
x=78
O. is the correct answer!!
Answer:
<h2>
After 5 hours</h2>
Step-by-step explanation:
If a scientist counts 35 bacteria present in a culture and finds that the number of bacteria triples each hour and the function y = 35 ∙ 3x models the number of bacteria after x hours, in order to estimate when there will be about 550 bacteria in the culture we will substitute y = 550 into the modeled equation and calculate the value of x as shown;
If y = 35*3x
when y = 550
550 = 35*3x
Dividing both sides by 35;
550/35 = 35*3x/35
3x = 550/35
x = 550/3*35
x = 550/105
x = 5.24
This means that there will be 550 bacteria in the culture after approximately 5 hours
Let x be the
lowest temperature in may 15
And y the
warmest temperature in may 15
Since the
lowest temperature is 2/3 the warmest temperature during that day, in equation
form
X = (2/3)y
Since the
lowest temperature is 60 F
60 = (2/3) y
<span>Y = 90 F</span>
Answer:
72
Step-by-step explanation:
Exhaustive search shows the numbers to be 12, 24, 36. The sum of these three numbers is 72.