Answer:
S= 5, L= 12
Step-by-step explanation:
To find the value of L and S, we need to first label the 2 equations.
L +S= 17 -----(1)
3L +2S= 46 -----(2)
From (1):
L= 17 -S -----(3) <em>(</em><em>-S</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>
Subst. (3) into (2):
3(17-S) +2S= 46
3(17) -3S +2S= 46 <em> </em><em>(</em><em>expand</em><em>)</em>
51 -S= 46
-S= 46 -51 <em>(</em><em>-51</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>
-S= -5
S= 5 <em>(</em><em>divide</em><em> </em><em>by</em><em> </em><em>-1</em><em> </em><em>throughout</em><em>)</em>
Subst. S=5 into (3):
L= 17 -5
L= 12
Answer:
assuming you want to cover 18 ft x 15 ft:
18 x 15 = 270 ft²
1.5 x 1.5 = 2.25 ft² per tile
270 ft²/ 2.25 per tile = 120 tiles
Answer:
25:23
Step-by-step explanation:
48-23=25
so 25 is the number of girls there are
make it a ratio
25:23 or 25 to 23 or 25/23
It is also rational. It is the same distance away from zero on the number line.
Do you have choices?