Answer:
1 sur 4 est équivalent.
Step-by-step explanation:
J'espère que cela aide !! Puis-je avoir la couronne?
4/16 et être réduit à 1/4!
3x - y = 6 ------------ (1)
y = x - 4 ------------ (2)
From (1) + (2) :
( 3x - y) + y = 6 + (x - 4)
3x - y + y = 6 + x - 4
3x = x + 2
2x = 2
x = 1 ------------- Sub into (2)
y = x - 4
y = 1 - 4
y = -3
Answer: x = 1, y = -3
Answer:
1.2
Step-by-step explanation:
Answer:
x=5 x=3
Step-by-step explanation:
f(x) = x^2 - 8x+ 15
Factor
What two numbers multiply to 15 and add to -8
-5*-3 = 15
-5+-3 = -8
f(x) = (x-5) (x-3)
Setting equal to 0
0= (x-5) (x-3)
Using the zero product property
x-5 =0 x-3=0
x=5 x=3
Answer:
13.75
Step-by-step explanation:
First you know there are 5 students and 5 teachers, for each student it costs 6.25 and for every teacher it cost 1.50. So 5 teachers x 1.50= 7.5. 5 students x 1.25 =6.25. 7.5 +6.25= 13.75
