Answer:
(21, 2 )
Step-by-step explanation:
Given the 2 equations
y = - x + 9 → (1)
y = x - 12 → (2)
Substitute (2) into (1)
x - 12 = - x + 9 ( add x to both sides )
x - 12 = 9 ( add 12 to both sides )
x = 21
Substitute x = 21 into either of the 2 equations and evaluate for y
Substituting into (2)
y = × 21 - 12 = 14 - 12 = 2
Solution is (21, 2 )
Answer:
y = 120
Step-by-step explanation:
41 = 0.4y - 7
-0.4y = -7 - 41
-0.4y = -48
y = 120
Answer:
c
Step-by-step explanation:
solve for x, so subtract 56 from 58.97
Answer
54 students are in the science club
Step-by-step explanation:
84 divided by 2 = 42
42 + 12 =54
84 - 54 = 30
so the science club has 54 students and the robotics club has 30 students
Answer:
D
Step-by-step explanation:
When you do a power to a power you multiply
4 * 2/9 = 8/9