Answer:
9 cookies in her original handful
Step-by-step explanation:
3 times 4 equals 12
12-3=9
I think you have to make 4 1/3 into an improper fraction that is 13/1 because 4*3=12 12+1=13. Then you divided 13/1(on a calculator you get a decimal) your will be 1 3/11
9∉T means that 9 is not an element of the set T .
You can certainly start out that way, but when you solve that equation for x, it's a little more complex than if you started with the other equation. I usually start with the most simple equation first. Let's take the first equation and solve for y... that will leave us without any fractions to deal with.
2x + y = -14
y = -14 - 2x
Now we have a y value and we can substitute it back into the other equation. So we will replace y in the second equation with (-14 - 2x).
That will leave us with just the x as a variable and we can solve for x.
7x - 4y = -19
7x - 4(-14 - 2x) = -19 multiply the -4 through the parentheses
7x + 56 + 8x = -19 combine like terms
15x + 56 = -19 subtract 56 from each side
15x = -75 divide each side by 15
x = -5
Now we have a value for x that we can substitute back into either of the original equations and then solve for y. I usually go with the easier equation, but it doesn't matter. Let's use the first one...
2x + y = -14
2(-5) + y = -14 multiply the 2 through the parentheses
-10 + y = -14 add 10 to each side
y = -4
So your ordered pair is
(-5, -4)
That is where the 2 lines are equal to one another, so that's the point where they they intersect.
Note*** You can start these problems with either equation and solving for either x or y... it doesn't matter. After you substitute the values into the other equation it will work out the same.
405g flour
18g salt
9g yeast
36ml oil
300ml water
(The amount of water she’s using compared to the recipe requirement is 3/4 of it, (300= 3/4 of 400), so just 3/4 the rest of the ingredients to match how much water she has)