Answer:
, or in this case, ![m=-(-7)](https://tex.z-dn.net/?f=m%3D-%28-7%29)
Step-by-step explanation:
Assuming that Justine's score is represented by
and Meagan's score is represented by
, we know that
will always be the opposite of
.
To represent opposite, we put a negative sign before the variable.
This makes the current number, even if it's negative, the opposite value.
Let's test it out.
Since Justine's score is -7, substituting it into the equation makes it
. We know that two negatives make a positive, so
.
Now let's assume Justine's score is 7. Plugging it into the equation, we get
. That's the same thing as
, and -1 times 7 is -7.
Hope this helped!
Answer:
The equation of the relation ⇒ ![y=\frac{6x}{z}](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B6x%7D%7Bz%7D)
y = 18
Step-by-step explanation:
∵ y ∝ x/z
∴ y = kx/z
∵ y = 18 , x = 15 and z = 5
∴ 18 = 15k/5 ⇒ 18 = 3k
∴ k = 18/3 = 6
∴ y = 6x/z
∵ x = 21 and z = 7
∴ y = (6 × 21)/7 = 18
Answer:
x = 15
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 given angles and equate to 180, that is
3x - 10 + 6x + 5 + 4x - 10 = 180, simplify left side
13x - 15 = 180 ( add 15 to both sides )
13x = 195 ( divide both sides by 13 )
x = 15
The answer is 15 cookies and 5 brownies