Answer:
53
Step-by-step explanation:
At first,
- 7 = 9 + x
By subtracting 9 from both sides, we get
-7-9=9+x-9
-16=x
Now,
By substituting the value of x in -3x + 5 , we get
-3x + 5
-3×(-16)+5
48+5
53
Answer:
49/4
Step-by-step explanation:
x^2 + 7x = 4
Take the coefficient of x
7
Divide by 2
7/2
Square it
(7/2) ^2 = 49/4
Add this to each side
x^2 + 7x +49/4= 4+49/4
Hey there!!!
What is slope-intercept form ?
<em>The slope intercept form is y = mx + b </em>
Where 'm' is the slope and 'b' is the y-intercept.
Given equation :
... 4x - 4y = 15
This is given is standard form.
Let's convert this into slope-intercept form.
... 4x - 4y = 15
... -4y = -4x + 15
... y = x + ( 15 / 4 )
<em>Hence, the slope is '1'. </em>
Hope my answer helps!
Answer:
The original cost was 20 dollars.
Step-by-step explanation:
$12 represents 60% of the original price.
Set up a proportion
Cross multiply Reduce 100/100 to 1
60/100 * x = 12 * 100/100
Multiply by 100
60/ 100 * x = 12
Divide by 60
60x = 12*100
60x = 1200
60x/60 = 1200/60
x = 20 dollars.
Answer:
I don't know sorry..........
