Craig has 5/6 of a bottle of glue. A recipe calls for three quarters of a bottle. Does he have enough glue

Mathematics

1 answer:

Alchen [17]2 years ago

8 0

Answer: He has enough bottle

Step-by-step explanation:

From the question, we are informed that Craig has 5/6 of a bottle of glue and that a recipe calls for three quarters of a bottle.

To know if he has enough bottle, we can subtract 3/4 from 5/6. This will be:

= 5/6 - 3/4

= 10/12 - 9/12

= 1/12

He has enough bottle since we got a positive value when we subtracted.

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Remark
This is costing you an awful lot of points, but it is a little hard to read. If I'm not interpreting it correctly, leave some sort of note below my answer.

Question One
In the first question you want a line that is parallel to x = 4 and goes through the point (-7,3). If I'm reading this correctly then the line you want is x = -7. You only need the x value of the given point. I'll put a graph there to show you what it looks like on a grid. The graph is the left one for this question.

Question Two
Here I think you want the line going through (5,-1) and perpendicular to y = 4x - 7. I will make a graph for that one as well.

Begin with the slope
Two lines are perpendicular to each other if their slopes multiply to - 1
Given slope (m1) = 4
perpendicular slope = m2

Formula
m1 * m2 = - 1
4 * m2 = -1 Divide by 4
m2 = -1/4

So far what you have is
y = (-1/4)x + b

Now use the given point to solve for b
x = 5
y = - 1
b = ??

-1 = (-1/4)*5 + b
-1 = -5/4 + b Add 5/4 to both sides
-1 + 5/4 + b Make -1 into -4/4
b = -4/4 + 5/4
b = (-4 + 5)/4
b = 1/4

So the line that you want is
y = (-1/4) x + 1/4

Answers
One: x = - 7
Two: y = (-1/4)x + 1/4

Note
The right graph is of y = 4x - 7 and y = (-1/4)x + 1/4