Answer:
x = -5 and y = 3
Step-by-step explanation:
There are two equations :
3x − 2y = −21 ....(1)
2x + 5y = 5 ......(2)
Multiply equation (1) by 2 and equation (2) by 3.
6x - 4y = -42 ...(3)
6x + 15y = 15 ....(4)
Subtract equation (4) from (3) :
6x - 4y - (6x + 15y) = -42 -15
-4y -15y = -57
-19y = -57
y = 3
Put y = 3 in equation (2) :
2x + 5(3) = 5
2x = 5-15
2x = -10
x = -5
So, the value of x is (-5) and y = 3.
Answer:
153.94
Step-by-step explanation:
AB=πr2=π·72≈153.93804
1 thousand and 1 hundred means 1100.
In scientific notation, it's 1.1*10^3
Answer:
were u looking for some like this, its for the first question
Step-by-step explanation:
Answer :
If 18+12 is 30 and only 18 of them has pets then 70 percent have pets
