N=number of nickles
d=number of dimes
n is 2 times d
n=2d
total money is 1.20
convert to cens
120 cetns
5n+10d=120
n=2d
5(2d)+10d=120
10d+10d=120
20d=120
divide both sides by 120
d=6
6 dimes is answer
answer is A, 6 dimes
Answer:
The interpretation of that same problem is listed throughout the section below on explanation.
Step-by-step explanation:
<u>Interpretation:</u>
- Researchers seem to be confident with 95% that the sample selection standard error seems to be + as well as - 4 percent respectively.
- This same margin of sampling error would then decrease from either the mean or average value by four percentage points smaller or even larger, it describes the survey method.
So that the above is the right answer.
Step-by-step explanation:
3x= (-8) -4
x=(-12)/3
x= -4
Answer:
$2/ hat
Step-by-step explanation:
Find the unit rate:
$ to hats
8 to 4
Divide by four to get the unit rate; over 1
2 to 1
So, $2 per hat
Hope this helps!
Answer:
A parallelogram
Step-by-step explanation:
The opposite sides and angles are congruent.
