Answer:18
Step-by-step explanation:
The 17.55 rounded to nearest pound is 18.
There would probably be multiple ways to solve this, but I will only show you one of them.
First, we need to figure out how many tablespoons of the chemical solution it takes to decrease the number of bacteria in a gallon to 300. So we subtract 1200 by 300, to find the number of unnecessary bacteria, which is 900. Now we divide 900 by 75, which is 12. So it would take 12 tablespoons of the chemical solution to make a gallon have 300 bacteria.
There are 500 gallons, and we need to put 12 tablespoons of the chem-solution in each gallon. So we multiply 500 by 12, which is 6,000. Meaning that 6,000 tablespoons of chemical solution would be needed to make the 500-gallon tank have 300 bacteria per gallon.
<u>Answer:</u>
The coordinates of triangle ABC have been multiplied by a scale factor of 0.5
<u>Step-by-step explanation:</u>
By considering the given points, we can determine that the coordinates have been cut to half or each of the coordinate is divided into two. For instance:
(-3,4) is divided by 2 to give (-1.5,2)
(0,4) is divided by 2 to give (0,2)
and (2,5) is divided by 2 to give (1,2.5)
Therefore the later figure will be half in size in comparison to the first one.
a. The number of twix bars is 21
b. The number of jolly rangers is 11.
Julianna has thirty two pieces of candy and has four twix bars for every two jolly rangers, we need to find the ratio of candy bars.
<h3>What is the ratio of candy bars?</h3>
Let
- x = number of twix bars and
- y = number of jolly rangers.
Since for every four twix bars, she has two pieces of jolly rangers, the ratio of candy bars is
x:y = 4:2 = 2:1
<h3>a. Number of twix bars</h3>
The number of twix bars is 21
The number of twix bars x = ratio of twix bars/total ratio × total number of candy bars
So, x = 2/(1 + 2) × 32
= 2/3 × 32
= 64/3
= 21.33
≅ 21
So, the number of twix bars is 21
<h3>b. Number of jolly rangers</h3>
The number of jolly rangers is 11.
The number of jolly rangers y = ratio of jolly rangers/total ratio × total number of candy bars
So, y = 1/(1 + 2) × 32
= 1/3 × 32
= 32/3
= 10.66
≅ 11
So, the number of jolly rangers is 11.
Learn more about ratio here:
brainly.com/question/25927869
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