D)1407
i hp this help
The total of,
36
78
198
475
+620
-------
=1407
Answer:
brainliest plzzz
Step-by-step explanation:
y = 2x
Let x = 1.5
y = 2*1.5
y = 3
Let x= 4
y = 2*4
y = 8
Step-by-step explanation:
again, 2 unknowns.
x = number of 2- points baskets
y = number of 3- points baskets
we know they hit the basket 37 times in a so far unknown mixture of 2-point and 3- point throws.
x + y = 37
which gives us e.g.
x = 37 - y
and we know that with this unknown mixture they scored 80 points.
so,
2x + 3y = 80
as every successful 2-points throw scores 2 points, and every successful 3-points throw scores 3 points.
so, again our 2 equations :
x = 37 - y
2x + 3y = 80
remember, we prepared the first equation so that it gives us already an identity expressing one variable by the other. and that we use in the second equation :
2×(37 - y) + 3y = 80
74 - 2y + 3y = 80
74 + y = 80
y = 6
and from
x = 37 - y
we get
x = 37 - 6 = 31
so, they had 31 2-points throws and 6 3-points throws.
Y - y1 = m(x - x1)
so
equation
y - 2 = 1/2(x + 6)
answer
A. y - 2 = 1/2(x + 6)