4 years ago

Ari has a total of 22 coins consisting of pennies and nickels. The total value of the coins is $0.54.

Mathematics

2 answers:

Temka [501]4 years ago

8 0

answer:

B. 0.01p + 0.05(22 – p) = 0.54

(got it correct on edgenuity)

Step-by-step explanation:

deff fn [24]4 years ago

8 0

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The solution is given in the image attached. The steps are:

Step 1:

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Step 2: simplifying the coefficients of x:

$2x -\frac{3}{5}x-\frac{1}{4}=\frac{55}{4}\\\frac{10x-3}{5} -\frac{1}{4}=\frac{55}{4}\\\frac{7x}{5} -\frac{1}{4}=\frac{55}{4}$

Step 3: Adding 1/4 to both sides

$\frac{7x}{5} -\frac{1}{4}+\frac{1}{4} =\frac{55}{4}+\frac{1}{4}\\ \frac{7x}{5}=\frac{55+1}{4}\\ \frac{7x}{5}=\frac{56}{4}\\$

Step 4: Multiplying both sides by 5/7

$\frac{7x}{5}*\frac{5}{7} =\frac{56}{4}*\frac{5}{7} \\x=10$

The addition property of equality states that if a number is added to both sides of an equation, the equation is still valid (i.e the equation is still the same). From the steps above, The addition property of equality was applied in step 3

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