Step-by-step explanation:
Divide 140 by 
to represent the amount of hours he worked.
To make dividing easier, can also represent 2.8 as a decimal.
He has worked 50 hours after completing 140 rows of grapes.
A(c - b) = d
ac - ab = d
ac = d + ab
c = (d + ab)/a
Answer:
t= .43
Step-by-step explanation:
8t + 3 -t
8t - t = 7t
7t + 3
7t/7 = t
3/7 = .43
t= .43
eight more than twice a number is less than twenty (what is the expression)
2x+8 <20
Answer:
1) 189.25 square inches
2) 21 square feet
Step-by-step explanation:
1) In order to find the area of a semicircle, you use (πr^2)/2. When you plug in 3.14 as pi and 5 as your radius, you'll get 39.25. The area of the rectangle is base x height which is 10 x 15/150. 150 + 39.25 = 189.25
2) If you draw a vertical line that is parallel to the 2 feet measure, you'll have two rectangles with areas (5x3) and (3x2). 15 + 6 = 21
