Answer:
7
Step-by-step explanation:
The area for a parallelogram is given by the following formula:
Where b is the base and h is the height.
We already know the area is 28 and the height is 4. So, substitute:
Divide both sides by 4:
So, the base length is 7.
Our answer is 7 :)
29. A carpenter worked for 4 days to finish a repair job. She charged $825 for 15 hours plus $278 for materials. What is the carpenter's rate per hour?
Let’s start solving:
=> 825 dollars + 278 dollars = 1 103 dollars is the total payment a carpenter have received
=> 15 hours is the total hours he worked
=> 1 103 / 15 = 73.5 dollars per hour. This is already including the material or equipment fee.
16. (x-5)(x+4) = x^2-x-20
17. 2x>7 = x=3.5
18. -4
3x+2=x+2x+4
-2 -2
3x=x+2x+4-2
3x=3x+4-2
-3x -3x
x= 4-2
x=2
(8*1) + (5*0.1) + (1*0.01) + (7*0.001).
8.517 in word form is eight and five hundred seventeen thousandths.
