Answer: number of adults = 3, number of children = 5
Step-by-step explanation:
let the number of adults be x, and the number of children be y.
x + y = 8 , 15x + 8y = 85
1st equation x 8 = 8x + 8y = 64

substitute x=3

Answer:
Therefore, the decimal number 5540 written in scientific notation is 5.54 × 103 and it has 3 significant figures.
Step-by-step explanation:
PLS BRAINLEST PLS PLS PLS
Answer:
<h2>the c one</h2>
Step-by-step explanation:
<h2>hope it will help</h2>
Answer:
Step-by-step explanation:
l = 8.6 x + 3
b = 5.2
perimeter =
The value of m to 2
But I’m not completely sure