The required number is -3 which when added to the numerator and to the denominator of 5/8 results in a fraction whose value is 0.4.
<h3>What is a fraction?</h3>
Fraction is the ratio of a particular part to the whole parts of an object. A fraction has a numerator and a denominator.
<h3>Calculation:</h3>
The given fraction is 5/8
Consider a number as 'x' which is added to both the numerator and the denominator of the given fraction.
So,
(5 + x)/(8 + x)
Since it is given that the result is 0.4 i.e., 4/10, we can write
(5 + x)/(8 + x) = 4/10
⇒ 10(5 + x) = 4(8 + x)
⇒ 50 + 10x = 32 + 4x
⇒ 10x - 4x = 32 - 50
⇒ 6x = -18
⇒ x = -18/6
∴ x = -3
Therefore, the required number is -3.
Check:
(5 + (-3))/(8 + (-3)) = (5 - 3)/(8 - 3) = 2/5 = 0.4
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Answer:
negative 3
Step-by-step explanation:
so if you know basic algebra you can make an equation 2x+10=4 simplify it to x+5=2 and if you subtract 5 from both sides you end up with x=negative three
Answer:
201.06 in^2/32Pi in2
Step-by-step explanation:
4Pi in2*8=32Pi in2
63.27 % of fishes are gold fish
<h3><u>Solution:</u></h3>
Given that out of 49 fish, 31 are goldfish
To find: percent of gold fish
The percent of gold fish is calculated by dividing number of goldfish by total number of fish multiplied by 100
<em><u>The percentage of gold fish is given by formula:</u></em>
From given information,
total number of fish = 49
number of gold fish = 31
Substituting the values in formula, we get
Therefore, approximately 63.27 % of fishes are goldfish
We are given a line passes through the point (-2,5). The slope should have been given as well. Assuming that the slope is 2, we can determine the values of x and y for the points A and B.
The formula for the slope is
m = (y2 - y1)/(x2 - x1)
The slope between (-2,5) and A(x,3) is
2 = (3 - 5) / (x - (-2))
Solve for x
Use the same approach for the points (-2,5) and B(-2,y) to solve for y.
