Roraniamsahhane
Roraniamsahhane
02-09-2016
Mathematics
contestada
60 is 15% of what number?
Respuesta :
dalendrk
dalendrk
02-09-2016
Method 1
[tex]\begin{array}{ccc}60&-&15\%\\x&-&100\%\end{array}\ \ \ \ |cross\ multiply\\\\15x=60\cdot100\\15x=6000\ \ \ \ \ |divide\ both\ sides\ by\ 15\\\boxed{x=400}[/tex]
Method 2
[tex]\begin{array}{cccc}15\%&-&60&|divide\ both\ sides\ by\ 3\\\\5\%&-&20&|multiply\ both\ sides\ by\ 20\\\\100\%&-&400\end{array}[/tex]
Method 3
[tex]p\%=\dfrac{p}{100}\\\\15\%=\dfrac{15}{100}=0.15\\\\0.15x=60\ \ \ \ |divide\ both\ sides\ by\ 0.15\\x=400[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 98+ )
Otras preguntas
find the area of a triangle given that c=40m b=20m a=48°
how do you solve 2.75+.003+.158=
The data represent the ages of people working at a store. 19, 27, 20, 26, 20, 24, 32, 23, 20, 19, 21 What is the first quartile of these ages?
which number is 100 less than 61 tens?
The copper wire and bulb is connected in a series with 220 V electric supply. Why only an electric bulb glows where as the copper wire remains the same.Give REA
What are some 5th grade science words that start with y
which number is 100 less than 61 tens?
three snack bars contain 1/5,0.22,and 19% of their calories from fat. which snack bar contains the least amount of calories from fat ?
Because the majority of the evening cable TV programs available dealt with violence and sex, the parents decided that the programs were for the children to watc
What is one fact about xuchal
