Answer:
c
Step-by-step explanation:
we have to use a mean to describe the center
Solving RootIndex 3 StartRoot 8 EndRoot Superscript x we get 
Step-by-step explanation:
We need to find equivalent to RootIndex 3 StartRoot 8 EndRoot Superscript x
Writing in mathematical form:
![(\sqrt[3]{8})^x](https://tex.z-dn.net/?f=%28%5Csqrt%5B3%5D%7B8%7D%29%5Ex)
Solving:
We know 8= 2x2x2= 2^3
and ![\sqrt[3]{x}=x^{\frac{1}{3}}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%7D%3Dx%5E%7B%5Cfrac%7B1%7D%7B3%7D%7D)
Applying these rules:
So, solving RootIndex 3 StartRoot 8 EndRoot Superscript x we get
Keywords: Radical Expression
Learn more about Radical Expression at:
#learnwithBrainly
Since you can spend all but 20%, then you can spend the rest, namely the 80%.
whatever% of anything is just (whatever/100) * anything.
therefore, 80% of 225 is then (80/100) * 225, that much.
Step-by-step explanation:
Let
x
be the kg of coffee of brand A in the mix and
y
be the kg of coffee of brand B in the mix.
The total kg must be
50
.
x
+
y
=
50
The cost per kg of the mix must br
$
7.20
. For this, the total cost of the mix will be
6
x
+
8
y
, so the total cost per kg of the mix will be
6
x
+
8
y
50
.
6
x
+
8
y
50
=
7.20
Now that we have our two equations, we can solve.
6
x
+
8
y
=
7.20
⋅
50
6
x
+
8
y
=
360
From the first equation, we can multiply both sides by
6
to get:
6
x
+
6
y
=
300
Subtracting, we get:
2
y
=
60
y
=
30
Thus, we need
30
kg of brand B in our mix. This means that
50
−
30
=
20
kg will be of brand A.
