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mandy9386
28.10.2020 •
Mathematics
Math help due in 45 sec plzzzzzzzzzz
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Ответ:
Equation: 120 - 4.5x = 45 + 0.5x Solution: 15
Step-by-step explanation:
So we're looking for how many days it will take for both to have the same amount of trees, the solution would be:
= 120 - 4.5x = 45 + 0.5x
= put variables to where it belongs
= 120 - 45 = 0.5x + 4.5x
= 75 = 5x
= 75 / 5x = 15
= x = 15
To confirm:
= 120 - (4.5 * 15) = 52.5
= 45 + (0.5 * 15) = 52.5
:)
Ответ:
we have a rectangle abcd dilated to center a'b'c'd'.
no we have two rectangles we know that in rectangles we have parallel and equal sides we have to use ratio of corresponding sides
ab and a'b
a'b': ab=![3: 9=3/9=1/3](/tex.php?f= 3: 9=3/9=1/3 )
we have rd=15 and we need to find rd'.
we know that ratio corresponding sides are always equal.
so rd' will be 1: 3 of rd