Assume x > 0.
To find 100% of the number, when given 20% of the number is x, you would divide x by 0.20 or multiply x by 5. Thus, the entire number is 5x, for x > 0.
In the given question, 20% of a number is represented as x. To find 100% of the number, or the total number itself, we need to set up a simple proportional equation. First, we equate the knowns. Therefore, 20%x is equal to 100% of the unknown number.
So, let's set up the equation: 20%/100% = x/number.
By simplifying this equation, you can calculate the complete number by dividing x by 0.20, or in other words, multiplying x by 5.
If and only if x > 0, the total number is therefore 5x.
#SPJ11
1/4 of 1/4
= 1/8
13 x 1/8
= 13/1 x 1/8
= 1 5/8
therefore there are 1 and 5/8 in the line of rickys fraction strips.
on a fraction strip line this is 13/8
Answer:
14 inches
Step-by-step explanation:
x = number of hours
y = depth of the snow on the ground
Formula:
y = ax + b
Informations: when the monitors started, there are a quantity of inches on the ground. 2 hours later, there are 10 inches. Then:
10 = 2a + b
2 hours later, there are 12 inches:
4a + b = 12
a and b, in both equations, are the same value. Then:
{2a + b = 10
{4a + b = 12
{- 2a - b = - 10
{4a + b = 12
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2a = 2
a = 1
2a + b = 10
2.1 + b = 10
2 + b = 10
b = 10 - 2
b = 8
Then, the linear function rule is:
y = x + 8
At noon, x = 0.
At 6 P.M, x = 6
Changing x for 6 in linear function rule:
y = 6 + 8
y = 14
I hope I've helped you.
Answer: 144.28 centimeters
Step-by-step explanation:
The height of Louisa = 152.7 centimeters
The difference in Louisa and her younger sister = 8.42 centimeters
Therefore, the height of her younger sister = centimeters
Thus, the height of her younger sister = 144.28 centimeters
Hence, Louisa's younger sister is 144.28 centimeters tall.