A. 1/5 fish
We know that 2/5 of Mike's fish are clownfish. Therefore, 3/5 are not clownish as 5/5 – 2/5 = 3/5. Also, if you look at the model, there are five pieces. If we assume that model represents the whole of Mike's fish and you take away two pieces, you are left with 3/5. So we know that the remaining fish is 3/5
Next, we know that of these 3/5 fish, 1/3 is damselfish, so we need to find 1/3 of 3/5. To do this, we must multiply 1/3 by 3/5 as "of" means multiply in Math.
So: 1/3 • 3/5 = 1 • 3/3 • 5 = 3/15 3 ÷ 3 = 1 and 15 ÷ 3 = 5 3/15 = 1/5
1/5 of Mike's fish are damsel fish
B. 2/5 fish
Now we know that 1/5 of Mike's fish is damselfish, and 2/5 is clownfish. To find the fraction of his fish that are neither, therefore, we must subtract their sum from the whole.
First, we add 1/5 and 2/5 together. Adding the numerators, 1 and 2, we get 1/5 + 2/5 = 3/5
Next, we subtract: 5/5 – 3/5 = 2/5, so 2/5 of his fish are neither clownfish or damselfish
And if you look at the model again, you can see that if you cross out 1 piece for the damselfish, and 2 pieces for the clownfish, you are left with 2/5
Parallel lines have the same slope. This means that they will never intersect each other. The only thing that is different is their b value (the constant). So we first have to figure out what the slope is for line B; and we will find the slope of line B because the slope of line B is equal to the slope of line A.
To find the slope of a line, we must use the following equation: y2-y1/x2-x1. This may seem difficult at first but it really isn’t. All you have to do is find two points that at are on the line of line A. Two points are (0,0) and (1,2). You can now use the forumla I’ve written down. x1 is 0, y1 is 0, x2 is 1, y2 is 2. Now we do the following:
(2-0/1-0) = 2/1; 2. This means that the slope is 2. We already know what b is (the constant) because the coordinate (0,-3) is already there. Which means the answer to your question is : 2x-3
I think it either a or c
Step-by-step explanation:
I work it out I think c sorry if I am wrong
Answer:
15 .9
Step-by-step explanation:
X=5+y
Substitute the value of x in second equation
28x – 9y= -12
28 (5+y)-9y =-12
140 +28y -9y =-12
140 +19y= -12
19y = - 152
y= -8
Now let's find the value of x using y
x= 5+y
x= 5 + (-8)
= -3
So,
x= -3
y=-8