Answer:102 children and 337 adults swam at the publice pool that da
Step-by-step explanation:
let the number of children be x
and
the number of adults be y
such that the total number of people who came to use the public swimming pool be expressed as
x + y = 439----- Equation 1
and price for swimming be expressed as
1.75x + 2.50y =1021----- Equation 2
Step 2
x + y = 439----- Equation 1
1.75x + 2.50y =1021----- Equation 2
First make x the subject formulae and put in equation 2
x= 439-y
1.75 (430-y) + 2.50y = 1021
Solving gives
768.25-1.75y+2.50y=1021
2.50y-1.75y=1021-768.25
0.75y=252.75
y =252.75/0.75
y=337
To find x, put the value of y = 337 in equation 1
x+y= 439
x= 439-337
x=102
Therefore 102 children and 337 adults swam at the public pool that day
Answer:
the solutions are 4 and -5
Step-by-step explanation:
Hello!
If we want to round 287.9412 to the nearest tenth, the answer would be 287.9
Since rounding to the nearest tenth would mean rounding the first decimal, that's why it gives us that answer.
Also:
287.9412
2 = hundreds
8 = tens
7 = ones
. = decimal
9 = tenths
4 = hundredths
1 = thousandths
2 = millionths
Hope this helped! c:
Answer:
803.84 feet squared
Step-by-step explanation:
A=pi*r^2
16^2=256
256*pi=803.84
