Answer:
-4
Step-by-step explanation:
i just did it on edge and got it right
Answer:
25,
8:5
4:3
Step-by-step explanation:
you have to model it as a system of equations.
first, we know there are a total of 65 children, boys and girls. so

we also know there are 15 more boys than girls so

now, we can plug the second equation into the first to get

so

if g = 25, b must = 40, because it is g+15.
the ratio will be 40 boys to 25 girls. 40:25 or 8:5 if you simplify.
if there are 5 more girls, g = 25+5 = 30, so the ratio is 40:30 or 4:3.
For the first one the price per ounce is:
$4.56/15oz=0.304 dollars per ounce, which rounds to 0.3
For the second:
$5.98/25oz=0.2392 dollars per ounce, which rounds to 0.24
The second is the cheapest price per ounce and rounds to $0.24/oz so 0.24 is the answer
Answer:
a line :P
Step-by-step explanation:
This is the slope intercept form of a line.
the formula is.....
y = mx + b
so that equations will make a line... that goes through 31.5 as it passes over the y axis... in a Cartesian graph... hmmmmm do they want you to draw it?
It would be hard to draw b/c of the 0.079 slope part.. but.. it's very very slightly going up hill... from 31.5....
Problems a through c are asking you what the values would be at those values.
What will the value of
be at
? Let's look at the graph.
It seems at
,
, meaning that 
Let's do the same for the others.
At
, 
At
, 
For the last question, it is giving us the
value and asking us which
values would give us that.
At
,
.
*Note* this function is continuous to the right, meaning that there is another point where
.
Hope this helps.
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