Select the correct expanded form for each expression. 155 = . (0.17)3 = .
2 answers:
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Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.
Step-by-step explanation:
Cost of almonds per pound = $10
Cost of roasted pistachios = $12
Total amount spent = $70
Weight of nuts = 6.3
Let,
Weight of almonds = x
Weight of roasted pistachios = y
According to given statement;
x+y=6.3 Eqn 1
10x+12y=70 Eqn 2
Multiplying Eqn 1 by 10
Subtracting Eqn 3 from Eqn 2;
Dividing both sides by 2
Putting y=3.5 in Eqn 1
Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.
Keywords: linear equations, elimination method
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A rational number is a number that can be written in form a/b where a and b are integers and b is not eual to 0
simplify eacy
we get
is irrational
since we can't write as a rational number, the entire phrase is irrational
anwer is irrational
simplify eacy
we get
since we can't write
anwer is irrational