STUDENT IS SEATED directly ACROSS FROM THE
18th student
How many students are there altogether
Answer:
7x18=x
solve for x , X= 127
answer = there are 127 students all together
hope this helpes
Answer:
Size of Mariana's swimming pool would be 2933 cubic feet.
Step-by-step explanation:
Mariana's swimming pool holds water = 22,000 gallons
there are 7.5 gallons water per cubic foot,
Now we have to calculate the size of the swimming pool by unitary method.
∵ 7.5 gallons of water is contained = 1 cubic foot of pool
∴ 1 gallon of water will be contained in = cubic foot
∴ 22,000 gallons of water will be contained in =
= 2933 cubic feet
Size of Mariana's swimming pool would be 2933 cubic feet.
The answer is summation of the quantity negative ten plus eight n from n equals zero to fifteen
In solving the question, we establish two equations based on the condition provided, including the ratios among men, women, and children. Solving the equation, we find out that there were 270 people at the concert.
This question relates to the mathematical concept of ratio and proportion as well as fraction.
According to the question, 2/5 of the attendees at the concert were men and men outnumbered children by 45. First, let's make the number of children, x. So, the number of men will be x + 45. Because 2/5 of the total attendees were men, set up the equation: 2/5 * Total = x + 45.
There were 3 times as many women as children, thus the number of women will be 3x. So, the total number of people in the concert is the sum of the men, women, and children, which is (x + 45) + 3x + x. Simplifying this, we get 5x + 45 = Total. Therefore, if we substitute (x + 45) for 2/5 of the total in our original equation, we have 2/5 * (5x + 45) = x + 45. Solving this equation, we get x = 45.
So, if we substitute x=45 into our total equation, we get Total = 5(45) + 45 = 270. Therefore, there were 270 people at the concert.
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This involves creating some equations.
First, these are what the letters I used stand for:
c = children
w = women
m = men
x = total population
Then, we must make an equation for each statement.
2/5x = m (2/5 of the people are men)
3c = w (there are 3 times as many women than children)
45+c = m (there are 45 more men than children)
Now, let's start plugging in our numbers:
x = all the men, women, and children
2/5(m+w+c) = m
2/5 (45+c +3c + c) = m [Now simplify]
2/5 (45 + 5x) = m [Now Distribute]
2/5(45) + (2/5)(5x) = m
2c + 18 = m [Above we stated that there were the same amount as men as c +45]
2c + 18 = 45 +c [Now set equal to c]
2c (-c) +18 = 45 +c (-c)
c+18 (-18) = 45 (-18)
c = 27
Now that we know that there was 27 children, we can plug 27 in for c in the other equations.
MEN = 27 + 45
WOMEN = 3(27)
CHILDREN = 27
Now add those three answers to find your total!
Hello!
Answer:
Step-by-step explanation:
Let the unknown be x:
Let's solve this equation to find the unknown:
◼ Divide both sides by 1/4:
◼ Simplify both sides:
◼ Simplify the right side:
Final answer:
The missing fraction to complete the multiplication fact is **2/3**.
Explanation:
To find the missing fraction, we can set up the equation as follows: , where **x** represents the missing fraction. To solve for we'll isolate it on one side of the equation.
First, we'll multiply both sides of the equation by the reciprocal of 1/4, which is 4/1 (or simply 4):
This simplifies to:
Now, we need to express 7/2 as a fraction with a denominator of 8. To do this, we'll multiply both the numerator and the denominator by 4:
Now, the fraction 28/8 is equivalent to 7/2, and it completes the multiplication fact. However, we can simplify 28/8 further by dividing both the numerator and denominator by their greatest common divisor, which is 4:
So, the missing fraction is indeed **7/8**, which completes the multiplication fact
Learn more about missing fraction.
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