Answer:
did you add the whole question and i am saying this here because it won't let me comment
Step-by-step explanation:
Lila must work 12 hours to earn $105.
The formula will be of direct variation. Wherein one variable directly varies to the changes of the other variable in a constant ratio.
y = kx
y is the total value; the variable that directly varies to x.
k is the constant value
x is the variable that changes
105 = 8.75x
105/8.75 = 8.75x / 8.75
x = 12 hours
Answer:
The equations:
the value for x and y:
Step-by-step explanation:
invest amount = 12900
let x = amount put into the first account
let y = amount put into the second account
we know the sum of of both is 12900, thus
We also know the sum of their annual interest rate is 1103
Thus the equations needed are
and
To find the values for x and you know have all equations you need
we need to get this equation to a single variable
we can do this using x or y, lets use x
we know
, so
lets plug into
1161 - .09y + .08y = 1103
-.01y = -58
y = 5800
we can get x from this equation from above
Answer:
x = 22.68
Step-by-step explanation:
82.24 = -8.48 + 4x
82.24 + 8.48 = 4x
4x = 90.72
x = 22.68
Answer: b = 1
Step-by-step explanation:
<u>Given</u>
6.8 - 4.2b = 5.6b - 3
<u>Add 4.2b on both sides</u>
6.8 - 4.2b + 4.2b = 5.6b - 3 + 4.2b
6.8 = 9.8b - 3
<u>Add 3 on both sides</u>
6.8 + 3 = 9.8b - 3 + 3
9.8 = 9.8b
<u>Divide 9.8 on both sides</u>
9.8 / 9.8 = 9.8b / 9.8
Hope this helps!! :)
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