Step-by-step explanation:
8.9x-5 and -6.8x+8
8.9-6.8 + -5+8
2.1x+3
Answer:
-1.6
Step-by-step explanation:
4x +8y=0
y=0.8 ⇒
- 4x+8*0.8=0
- 4x+6.4=0
- 4x=-6.4
- x= -6.4/4
- x= -1.6
Answer:
Option C.300
Step-by-step explanation:
we know that
To find out how many times greater is the land area of the United States than that of Norway, divide the area of the United States by the area of the Norway
so
Remember that
To divide exponents (or powers) with the same base, subtract the exponents
so
Find the Greatest Common Factorthe largest number that divides evenly into <span>4x<span>4x</span></span> and <span>-6<span>−6</span></span>?
It is <span>22</span>.
the highest degree of <span>xx</span> that divides evenly into <span>4x<span>4x</span></span> and <span>-6<span>−6</span></span>?
It is 1, since <span>xx</span> is not in every term.Multiplying the results above,
The GCF is <span>22</span>.
<span><span>2(<span><span>2</span><span><span>4x</span></span><span></span></span>−<span><span>2</span><span>6</span><span></span></span>)
</span>
<span>−2(2x−3)</span>
</span>
For this case what we should do is find the cost per ounce.
For this, we can use the following rule of three:
5 ounces ----------------------> 2.50 $
1 oz ------------------------> x
From here, we clear the value of x.
We have then:
Answer:
The unit cost per ounce is given by:
x = 0.5 $ / ounce