No, not 21.
10
+9
__
19
Or:
1, 2, 3, 4, 5, 6, 7, 8, 9
O O O O O O O O O
+
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
O O O O O O O O O O
=
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19
O O O O O O O O O O O O O O O O O O O
I think it is just
y= -1/4x+5
I'm not a member but will keep that in mind if I create an account!
The formula for slope is: m = (y2 - y1) / (x2 - x1)
The slope from (-4, 6) to (4, 4) is: m = (4 - 6) / (4 - -4) = -2/8 = -1/4
The slope from (4, 4) to (8, 3) is: m = (3 - 4) / (8 - 4) = -1/4
The slope from (8, 3) to (12, 2) is: m = (2 - 3) / (12 - 8) = -1/4
Since the slope is always the same, these points fall on a straight line.
The point-slope formula for a straight line is: y - y1 = m(x - x1)
Using (x1, y1) = (-4, 6) and m = -1/4: y - 6 = (-1/4)(x - -4)
y - 6 = (-1/4)(x + 4)
y - 6 = (-1/4)x - 1
y = (-1/4)x + 5
Melody, you are correct, so I'll modify my answer.
If you think geno's answer is correct, you can "thumbs up" him (top right corner of his comment.)
Thank you!
Work from the inside out:
12 - [ -3 + (6t - 9) ]
REmove the inner parentheses: = 12 - [ -3 + 6t - 9 ]
Combine -3 and -9: = 12 - [ 6t - 12 ]
Distribute the negative sign: = 12 - 6t + 12
Combine 12 and 12: = 24 - 6t
The wording of the question is very poor mathematician - it would have confused me too :)
No, t is supposed to be there and is a variable
It equals 18 if you take out the t (I'm assuming it's a typo)
Thank you, just the word "rate" was confusing.
exactly! they dont really make sense.
oh, okai. thanks you guys are lifesavers.
Ah, that's what it means. I usually think of that in terms of "ratio" for non-speed based situations. I thought rate was only used for speed. This looks like a poorly worded problem to me.
Try this:
There are various recipes that use a ratio of one item to another as the rate of 2 : 3.
For instance, for chicken casserole, a recipe may tell you to use 2 cups of cooked rice to 3 cups of cooked (diced) chicken.
Just wait a moment, someone with more knowledge of math will come soon.
i typed it correctly. i just want to know what it wants me to do.
I don't think ingredients naturally have rates associated with them. Rates of what?
Also, two ingredients is kind of general.
yeah, maybe. i dont get what its really asking me for.
Are you sure you typed that correctly?
I'm very confused on what this is asking. Rates and recipes? I have no idea what this means, and it looks lke nonsense to me, but perhap Melody, CPhil, or geno3141 could help.
No, they are not the same.
Here is why:
(Assuming you know the value of y and x and solve.)
In the first one, everything is subtracted from two at the end.
In the second one, since 2 is inside parenthesis lower than y^2, the problem ends with everything being divided by y^2.
True, but it is more productive to answer something not already answered.
So I can answer if I wanna
