300/ 15 = 20
divide bar graph into 20 equal sections
each section represents one week
algebra
number of weeks = x
15x = 300
x = 300/15
x = 20
In mathematical expression, it would be: x - y/2
Hope this helps!
Given data:
The first equation is 3j +14=-5z.
The second equation is -10j=5z .
Add both the equations.
![\begin{gathered} (3j+14)+(-10j)=-5z+5z \\ -7j+14=0 \\ 7j=14 \\ j=2 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%283j%2B14%29%2B%28-10j%29%3D-5z%2B5z%20%5C%5C%20-7j%2B14%3D0%20%5C%5C%207j%3D14%20%5C%5C%20j%3D2%20%5Cend%7Bgathered%7D)
Substitute 2 for j in the first equation.
![\begin{gathered} 3(2)+14=-5z \\ 20=-5z \\ z=-4 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%203%282%29%2B14%3D-5z%20%5C%5C%2020%3D-5z%20%5C%5C%20z%3D-4%20%5Cend%7Bgathered%7D)
Thus, the value of j is 2 and z is -4.
Okay here's an example so if we have 2, 3/2*1/2 we convert the mixed numbers to improper fractions. So in order to solve a mixed number you add the denominator, numerator and whole to get 7/2*1.2
So Multiple
7/2*1/2
Refine the fractions
7/2*2
Multiple the numbers 2*2=4 to get
7/4
and that equals 1, 3/4
Answer:
c=−35
Step-by-step explanation:
Let's solve your equation step-by-step.
−5=
c
7
Step 1: Simplify both sides of the equation.
−5=
1
7
c
Step 2: Flip the equation.
1
7
c=−5
Step 3: Multiply both sides by 7.
7*(
1
7
c)=(7)*(−5)