Answer:
Step-by-step explanation:
4x + y = - 1 -------------(I)
-5x - 2y = -4 -----------(II)
Multiply the equation (I) by 2 and then add the equations.
(I)*2 8x + 2y = -2
(II) <u>-5x - 2y = -4</u> {Now add and y will be eliminated}
3x = -6
x = -6/3
x = -2
Substitute x = -2 in equation (I)
4*(-2) + y = -1
-8 + y = -1
y = - 1 + 8
y = 7
Answer:
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Step-by-step explanation:
good luck!
So ram had 10 chocolates and i had 30 chocolates
because 1:3= 10:30
=> 4= 40
Step-by-step explanation:
Here the deposited amount is considered as 'P'
The rate of interest is 'R'
The time is 'T'
P=$ 1000
R= 3%
T= 4 years
The simple interest can be calculated by,
Interest = (P x R x T) / 100
= ( 1000 x 3 x 4 ) / 100
= ( 12000) / 100
= $120
The simple interest for 4 years is $120
Total amount= P + Interest
= 1000 + 120
= $1120
So after 4 years the account will have $1120 .
Answer:
-67.2
Step-by-step explanation:
