Answer:
The solution of the system is x=-2, y=-1
see the explanation
Step-by-step explanation:
we know that
When a system of linear equations is solved using a graph, the solution of the system of equations is the point of intersection of the two lines
In this problem
The intersection point both lines is (-2,-1)
therefore
The solution of the system is x=-2, y=-1
8/10 is the fraction form of .8. In percentages it would be 80%.
Answer:
![\frac{7}{15}](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B15%7D)
Step-by-step explanation:
To find the reciprocal of a fraction, simply switch the numerator and denominator.
Since
is a mixed number, start by converting it to a common fraction using ![a\frac{b}{c}\implies \frac{a \cdot c+ b}{c}](https://tex.z-dn.net/?f=a%5Cfrac%7Bb%7D%7Bc%7D%5Cimplies%20%5Cfrac%7Ba%20%5Ccdot%20c%2B%20b%7D%7Bc%7D)
Therefore,
as a common fraction is:
![\frac{2\cdot 7+1}{7}=\frac{14+1}{7}=\frac{15}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5Ccdot%207%2B1%7D%7B7%7D%3D%5Cfrac%7B14%2B1%7D%7B7%7D%3D%5Cfrac%7B15%7D%7B7%7D)
Now switch the numerator and denominator to find the reciprocal:
![\rightarrow \boxed{\frac{7}{15}}](https://tex.z-dn.net/?f=%5Crightarrow%20%5Cboxed%7B%5Cfrac%7B7%7D%7B15%7D%7D)
You just divide so she can make about 15 candles
Answer:
Width is 10 Length is 20
Step-by-step explanation:
Perimeter = 60
Length = W + 10
P = 2L + 2W Write the equation for perimeter
60 = 2(W + 10) + 2W Substitute your variables
60 = 4W + 20
- 20 - 20 Subtract 20 from both sides
40 = 4W Divide both sides by 4
10 = W