Answer:
x=-9-2y/5
Step-by-step explanation:
5x+2y-2y=-9-2y
5x=-9-2y
5x/5=-9/5-2y/5
x=-9-2y/5
Answer:
x = 7 , y = 2
Step-by-step explanation:
It is a linear equation in 2 variables so it can have infinite solutions
Put x=7 Then,
7 - 3y = 1
-3y = 1-7
-3y = -6
y = -6/-3 = 6/3
y = 2
Answer:
5π or 15.7
Step-by-step explanation:
the arc of the semicircle 1/2 circumference of circle = diameter*π =2*radius*π
radius = 5 so
1/2 *2*5*π =5π or 5*3.14 = 15.7
Answer:
it would take 30 and a half days to make 240 cookies
Notice that





so that for each power of 2, there is a pattern of period 4. This means that for integers

, each of

,

,

, and

have the same units digit.
We can write

, and since

, it follows that

and

share the same units digits. So the units digit of

is 8.