Answer:-3
Step-by-step explanation:
The expression is already in decimal form.
−3 slope
<h3>
Answer: Choice A</h3>
0.10d + 0.05n = 2.25
d = 2n
================================================
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
The answer for A is 2,026. I set a porportion up which is 77/x = 3.8/100
The answer to B is 26
12.5% goes to .125
so .125 as a fraction is:
(x`-b/2a)-D/4a
(x`-7)+576
answer! (7;-576)
