Answer:
x = 1, y = 2, z = 4
Step-by-step explanation:
(x + 4y – z = 5
2(3x – 2y + 2z = 7
)
6x - 4y + 4z = 14
7x + 3z = 19
3(2x – z= -2)
6x - 3z = -6
13x = 13
x = 1
6(1) - 3z = -6
-3z = -12
z = 4
(1) + 4y - 4 = 5
4y = 8
y = 2
Answer:
(8-5)*(6+7+(8-6)+(7-5))
Step-by-step explanation:
boy or an A student is
29 made an A + 8 boys who did not make an A
37 who made an A and/or who is a boy
37/50
Answer:
-22
Step-by-step explanation:
Put -4 where x is and do the arithmetic.
f(-4) = 3(-4) -10 = -12 -10
f(-4) = -22
Answer:
£ 56
Step-by-step explanation:
3 : 7
Zoe - 24
3x8 = 24
7 x 8 = 56
Hannah received 56.
