What is the value of the expression? −4.2(−2.8+4.5)
2 answers:
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Answer:
Nickel = 12
Quarters = 26
Step-by-step explanation:
Given
<em>Represent Nickel with N and Quarters with Q</em>
--- <em>It's 14 more quarters; not 143</em>
Required
Determine the quantity of each coin
First, we have to know that:
-- (1) ---- By converting N and Q to dollars;
Substitute 14 + N for Q in (1)
Open Brackets
Collect Like Terms
Divide through by 0.3
Recall that: