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tgould1969
28.11.2019 •
Mathematics
The value of y varies directly with x, and y = 4 when x = 10. find y when x = 1.
a. −2.5
b. 2.5
c. 0.4
d. −0.4
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Ответ:
Ответ:
To make the statements equal, you divide both by ten since that's what they did to get x to equal 1. 4 ÷10 is .4
Ответ:
20 : 1
Step-by-step explanation:
The quantities must be in the same units, that is
$6 = 600c, thus
$6 : 30c
= 600c : 30c ← divide both parts of the ratio by 30
= 20 : 1 ← in simplest form