Answer:
Option A) x = 3 and y = 5
Step-by-step explanation:
−7x + 3y = −6_____ first equation
−3x + 3y = 6_____ second equation
Since both equations have "y" that share the same coefficients (that is 3),we can solve this equation.
---First step is to subtract the equation 2 from 1
−7x + 3y = −6
−3x + 3y = 6
From the above equation, we have
-4x = -12
Divide both sides by -4
X = 3
--- Substitute x = 3 in equation 1
−7x + 3y = −6
-7(3) + 3y = -6
-21 + 3y = -6
3y = 21 - 6
3y = 15
Y = 5
X = 3 and y = 5( option a)
The definite integral of #x^3# is 1.5
Hope this Helped!
;D
Brainliest??<span />
Answer:
77 red marbles
Step-by-step explanation:
the bag has R and B marbles
P(B)=1/12 = number of blue /total number of marbles
so 1/12=?/84
in the bag must be 84/12=7 marbles that are blue
84-7=77 red marbles
Answer:
1022.50
Step-by-step explanation:
1000*.03= 30. (12mos interest)
30/4=7.50 quarterly interest
7.50x3 (9mos)= 22.50 interest
Answer:
Step-by-step explanation:
Simple interest is
I=Prt, where I= interest, P=principle (initial value), r=interest rate, t=time
I=200(0.052)3
I=$31.20
