Answer: $2/child and $4/adult
Step-by-step explanation:
The total fare is $14 for 2 adults and 3 children
x is the child's fare
y is the adults fare
We can say:
1) 3x + 2y = $14
2) We are told that x = (1/2)y [each child's fare is 1/2 each adult's fare]
3) use (2) in (1)
3x + 2y = $14
3(1/2)y + 2y = $14
(3/2)y + 2y = $14
(7/2)y = $14
y = ($14)*(2/7)
y = $4/adult
x = (1/2)y; x = (1/2)(4)
x = $2/child
Check: Does 3x + 2y = $14 when x = $2/child and y = $4/adult?
3x + 2y = $14
3($2/child) + 2($4/adult) = $14
$6 + $8 = $14 YES
Answer:
15000
Step-by-step explanation:
In 15476, 5 is the place value of thousand. For rounding it to nearest 1000, check the next digit to 5. It is 4, which is less than 5. So, 15476 rounded to 1000 is 15000
Answer:
54º.
Step-by-step explanation:
two angles that are complementary have to add up to 90º. therefore, 90º-36º=54º angle.
The common difference is 2
