azduce
17.10.2020 •
Mathematics
Evaluate the expression
1-2x+3y for x=-2 and y=-5
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Ответ:
-10
Step-by-step explanation:
1 - 2(-2) + 3(-5)
Multiply -2 times -2 which should give you a positive 4. Then, multiply 3 times negative 5 which should give you -15. And 1 + 4 - 15 = -10
Ответ:
the original cost is $30 , the percent of the markup is 30% , the markup amount is $9 , the new price is $39.
Step-by-step explanation: