Answer:
n=2.5
Step-by-step explanation:
- (2n + 4) + 6 = -9 + 4(2n + 1)
- 2n+10=-9+8n+4
- 2n+10=8n-5
- 8n-2n= 10+5
- 6n=15
- n=15/6
- n=2.5
The error that occurred is a systematic error.
<h3>
What is random error?</h3>
Random error is a type of error that causes one measurement to differ slightly from the next.
<h3>
What is systematic error?</h3>
Systematic error is a type of error that affects measurements in the same amount or by the same proportion, provided that readings are taken in the same way.
The three measurements 548.5 g, 548.9 g, and 548.7 g differ slightly but in the same amount and proportion.
Therefore, a systematic error occurred during the determination of the mass of the substance because the readings were taken in the same way and the measurement differ in the same amount.
Read more about error in measurement here:
https://brainly.in/question/9800276
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There are many answers for this and this is one of them:
Y = 4(3 + 1)
Y = 16
Answer:Answer:
y=x*3
Step-by-step explanation
step one: find how many times dose 5 go into 15
15/5=3
then we can do the same thing to see how many 15's can go into 45
45/15=3
therefore, the answer is 3
11x=1
x= 1/11 (divide 11 on both side)
