Answer:
(7,3)
Step-by-step explanation:
you can add the equations together to eliminate y and first solve for x
(x-3y = -2) + (x+3y=16) = (2x = 14)
x = 7
then plug x into one of the equations to solve for y
(7) - 3y = -2
9 = 3y
y = 3
the solution is (7,3)
That would be 9,000,000,000 times 8, wich is 72,000,000,000. Because 9*8 is 72 excepts theres a 9 million.
Answer:
Option (b) 10 to 20
Step-by-step explanation:
Let the number obtained between the interval be 'x'
Therefore,
according to the question:
multiplying the number with 4 and then adding 8 to it to get 60
thus,
mathematically, we get
4x + 8 = 60
or
4x = 60 - 8
or
4x = 52
or
x = 13
Hence,
The 13 lies between the interval 10 to 20
Option (b) 10 to 20
Answer:
3/7 x 8/3 = 8/7 = 1 1/7
Step-by-step explanation:
3/7 × 8/3
<u>3</u><u> </u><u>x</u><u> </u><u>8</u>
7 x 3
= 24/21
<u>2</u><u>4</u><u> </u><u>÷</u><u> </u><u>3</u>
21 ÷ 3
=8/7
= 1 1/7
The answer is the first one: 1 1/5 because 120/100 = 1.2
