kayeeii
07.12.2020 •
Mathematics
If y=45 when x=15 find x when y=57?
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Ответ:
x=19
Step-by-step explanation:
To find this we need to find the simplest form of y and x
Chart:
Y | 45 |
X | 15 |
To find the simplest form divide both sides with their gcf which is right now 15 so divide by 15: For y 15 divided by 45 is 3, for x 15 divided by 15 is one so the graph looks like this:
Y | 45 | 3 |
X | 15 | 1 |
So now we know this fact we can just divide 57 by 3
(We need to divide it to see how many times does it take for 3 to get to 57 and we can use that number to multiply it with 1 and only one since when y is 3 x is 1.)
57 divided by 3 is 19
So we multiply 19 with 1 which is 19
So x is 19
Graph:
Y | 45 | 3 | 57 |
X | 15 | 1 | 19 |
Hope this helps!
Ответ:
132
Step-by-step explanation:
gnh=3 knl×2=100 mnl=1