devikapal101
26.11.2020 •
Mathematics
Rice costs $x per kilogram.
Potatoes cost $(x + 1) per kilogram.
The total cost of 12 kg of rice and 7 kg of potatoes is $31.70.
Find the cost of 1 kg of rice.
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Ответ:
$1.3
Step-by-step explanation:
12x+7x+7=31.7
x=1.3
PLS GIVE BRAINLIEST
Ответ:
3( -2x + 4)
let's equal the given soln to 0
3(-2x+4) = 0
-6x + 12 = 0
-6x + 12 - 12 = 0-12
-6x = -12
we divide both sides by -6
-6x/-6 = -12/-6
x = 2
Step-by-step explanation:
hope that will help you.