Answer:
Step-by-step explanation:
3 cups of water + jug = 2.25 lbs
jug = .75 lbs
3 cups of water = 1.5 lbs
1 cup of water = .5 lbs
Therefore,
y = .75 + .5x
60 seconds because I have down this before and check it about a million time
Answer: 81/2 inches squared or 40.5 inches squared
Step-by-step explanation:
The volume of a pyramid = bh/3
so V = bh/3
V = 108 and h = 8, so plug these in
108 = 8b/3
b = 108 *3/8
= 40.5 inches squared
or if you want a fraction, 81/2 inches squared
W + 8 = -4 - 6w / + 6w;
7w + 8 = - 4 / -8;
7w = -12 /÷7
w = -12/7 is the solution of the equation.
We verify: -12/7 + 8 = -4 - 6 x ( -12/7 );
Then, -12/7 + 56/7 = -28/7 + 72/7;
44/7 = 44/7 ( TRUE );
Answer:
both choices with 2x+y = -3
Step-by-step explanation:
to have the solution (-4, 5), that point must be on both equations/functions, meaning it must be on either one.
in other words, if the point is not on at least one of the functions, it cannot be a solution for that system.
the given function
2x + y = -3
looks like for the point (-4, 5)
2×-4 + 5 = -3
-8 + 5 = -3
-3 = -3
correct.
but
-2x + y = -3
looks like for (-4, 5)
-2×-4 + 5 = -3
8 + 5 = -3
13 = -3
wrong. the point is not on this function.
as we can therefore rule out 2 of the answer options, the other 2 most be correct.
