The equation which can be used to find the number of quarters and nickels is; n + q = 84, 0.05n + 0.25q = 17.80.
<h3>Quarters and nickels</h3>
- Total coins = 84
- Total value = $17.80
let
- Number of quarters = q
- Number of nickels = n
n + q = 84
0.05n + 0.25q = 17.80
From equation (1)
n = 84 - q
Substitute into (2)
0.05n + 0.25q = 17.80
0.05(84 - q) + 0.25q = 17.80
4.2 - 0.05q + 0.25q = 17.80
- 0.05q + 0.25q = 17.80 - 4.2
0.20q = 13.60
q = 13.60 / 0.20
q = 68
Substitute q = 68 into
n + q = 84
n + 68 = 84
n = 84 - 68
n = 16
Therefore, the number of quarters and nickels are 68 and 16 respectively.
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So we see our equation, clear:
y=8^x
Let's just plug in values of x from 1-4.
y= 8^1=8; So, it would be (1,8).
y= 8^2=64; So, it would be (2, 64).
y = 8^3= 512; So, it would be (3,512).
y= 8^4 = 4096; So, it would be (4, 4096).
Answer:
-24429426005603403/7250
Step-by-step explanation:
Answer:
165 meters is 5.5% of 3 kilometers.
Solution:
We need to calculate 165 meters is what percent of 3 kilometers.
When comparing or calculating percentage the two quantity should have same units.
So we need to convert 3 kilometers into meters
1 km = 1000 meters
So 
3 km = 3000 meters
Now, need to calculate 165 meters as how much percentage of 3000 meters
So we get
= 5.5%
Hence 165 meters is 5.5% of 3 kilometers.
Answer: 6 inches = 1 inch.
Step-by-step explanation: 16 ft is 192 inches. 192 in/ 32 = 6 so our scale factor is 6 inches = 1 inch.
