Answer:
Step-by-step explanation:
4 cm to 25 miles = 20 cm to x miles
4 / 25 = 20 / x
cross multiply
4x = (25)(20)
4x = 500
x = 500/4
x = 125 miles <=====
Answer:
11 small frames, 5 large frames
Step-by-step explanation:
small: x
large : y
x + y = 16
4x + 14y = 114
Multiply first equation by 4 and subtract.
4x + 4y = 64
-(4x + 14y = 114)
-10y = -50
y = 5
Substitute y into the first equation.
x + 5 = 16
x = 11
-8n+4(1+5n)=-6n-14
-8n+4+20n=-6n-14
12n+4=-6n-14
12n+6n=-14-4
18n=-18
n=-18/18
n=-1
You can say 99 children or 39 children and 44 adults
