Answer:
(0,3]
Step-by-step explanation:
You put ( when the number is included and ] when the number isn't included. So 0 is included and 3 isn't.
Answer:
X = 14 kg
Y= 7 kg
Step-by-step explanation:
LET X and Y equal the amounts of brand X and Y
X = kg of brand X
Y = kg of brand Y
we know:
1) X + Y = 21 (kg)
2) 1X + 4Y = 2(X + Y) (This is the cost/kg * amounts for total cost)
Coefficients 1,4,2 are the cost/kg)
substitute eq. 1 (X+Y), = 21 into right side of equation 2
1X + 4Y = (21)*2
use elimination to solve 2 equations
X + Y = 21
X + 4Y = 42 (now subtract, note: I wrote the 1X as just X)
------------------
0 -3Y = -21 OR Y = 7 kg so X = (21-7) OR X = 14 kg
Step-by-step explanation:
x = -6.5
these angles are congruent so
5x-7=7x+6
In addition or subtraction?
Y+8=4
Y-12=2x-8
+12
—————-
Y=2x+14
A. 3045.9
B. 156.9
C. 29.385
D. 214.5
E. 457.38
F. 4380.4
G. 80096.4
H. 1788
A. 3.3
B. 3.5
C. 15.64
D. 11.52
E. 31.98
F. 376.992
E. 767.208
F. 100.455
