Answer:
5/12
Step-by-step explanation:
p = 18.5
Step-by-step explanation:
a. to find perimeter you have to add all the sides together
So if one side is p, and the other side is 3p+2, just add them together like this
p + 3p + 2, then combine the ps so the expression is
4p + 2
b. now you find out the perimeter is 76
So put the original expression of your perimeter and 76 together like this
4p + 2 = 76
c. So now solve the equation
4p + 2 = 76
subtract 2 from both sides to get the ps alone
4p = 74
now divide by 4 to get the p by itself
74 ÷ 4 is 18.5, or 18 1/2
So p = 18.5 or 18 1/2
true if that's what ur looking for. hope this helps
<h3>
Answer: Choice A</h3>
0.10d + 0.05n = 2.25
d = 2n
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Explanation:
n = number of nickels
d = number of dimes
we have twice as many dimes as nickels, so we could have something like 18 dimes and 9 nickels. Algebraically we would write d = 18 and n = 9. The equation that fits this is d = 2n. The answer is between A and B at this point.
We rule out choice B since the 0.05d is incorrect. It should be 0.10d to represent the total value of all the dimes.
Choice A is correct
d = number of dimes
0.10d = value of all the dimes in dollars
n = number of nickels
0.05n = value of all the nickels in dollars
0.10d + 0.05n = total value from both coins combined
2.25 = total value from both coins combined
0.10d + 0.05n = 2.25
