Lets try it this way. 3 numbers sum is equal to 81, thus A+B+C = 81. Now lets go to the next portion of the question.
The second number is 4 times the first.
B = 4A
The third number is 3 more than the first
C = 3+A
since we have everything in terms of A lets solve for A.
A+ 4A+ (3+A) = 81
do some simple math to find A.
A+4A + 3 + A = 81.
6A + 3 = 81
6A = 81 -3
6A = 78
A = 13
Now we got A lets solve for B and C.
B = 4A
B = 4(13)
B = 52
C = 3+A
C = 3+13
C = 16
Now lets check our answer
A+B+C = 81
13+52+16 = 81
Answer: She should buy 3 bottles
Step-by-step explanation: 1 quart = 4 cups. 4x3=12
Answer: 12%
Step-by-step explanation:
Original amount = Rs 1550
VAT = Rs 1736 - Rs 1550 = Rs 186
VAT rate = VAT/Original amount × 100
= 186/1550 × 100
= 18600/1550
= 12%
Therefore, the VAT rate is 12%.
Check:
= Rs 1550 + (12% × Rs 1550)
= Rs 1550 + $186
= Rs 1736
In algebra, a function is basically something that relates or connects "one" set to another "set" in a certain way. A set is just a group or collection of things. It's often a set of numbers but does not have to be.