Step One
Multiply both sides by 80
7/8(x - 1/2)*80 = (-49/80) * 80
Step Two
7(x - 1/2 ) * 10 = - 49 Divide both sides by 7
(x - 1/2) * 10 = -49/7
(x - 1/2) * 10 = - 7 Remove the brackets on the left.
10x - (1/2)*10 = -7
10x - 5 = - 7 Add 5 to both sides.
10x = -7 + 5
10x = -2 Divide by 10
x = -2/10
x = - 0.2
Step Three
Check
We better check this one.
7/8*(-0.2 - 1/2)
7/8* (-.2 - 0.5)
7/8* (-0.7)
- 4.9/8 Now you can do one of two things. The easiest and simplest is to multiply top and bottom by 10
-4.9*10 / 8 * 10
-49 / 80 Which is the same as the right hand side.
Answer:
n= y- x/2
Step-by-step explanation:
Answer:
A.
Step-by-step explanation:
y intercept at (0, -2) and the lines slope is 3
Answer:
19.7%
Step-by-step explanation:
<h3>
Dan's equation is wrong.</h3>
Step-by-step explanation:
Given, Dan borrows money to buy a new trumpet $400 at simple interest rate of 5% .
here P =$400, r = 5% and t = 1
Therefore he will need to pay back after one year is = 400+(0.05×400)
So, t = 400+(0.05×400)
Dan's equation is wrong.
