Nilai rata2 matematik dari 10 siswa adalah 55 jika digabungkan lagi dengan 5 siswa maka nilai rata2 menjadi 53tentukan nilai rata2 dari 5 siswa tersebut

answer: 19 is   2

step-by-step explanation: i just looked at your answer and wrote it down

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

only 10/60 isn't equivalent

hope this : )

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )