Answer:
26
Step-by-step explanation:
[(7+3)5-4]/2+3
-To solve this equation you have to use PEMDAS
P- Parentheses
E- Exponents
M- Multiplication
D- Division
A- Addition
S- Subtraction-
- With MD and AS you work left to right of the equation since they are in the same spot. (PE[MD][AS])
Step 1) [(10)5-4]/2+3
- First you do "P," parentheses, so you add 7+3=10
Step 2) [50-4]/2+3
- Next you do "M," multiplication, and multiply 10x5=50
Step 3) [46]/2+3
- Then you do "S," subtraction, and subtract 50-4=46
(FYI: Steps 1-3 were still in the parentheses. We had to start with the parentheses in the parentheses, work PEMDAS, and now we are out of the parentheses and have to work PEMDAS on the rest of the problem.)
Step 4) 23+3
- Now we do "D," division, and divide 46/2=23
Step 5) 23+3=6
- Finally we do "A," addition, and add 23+3=26 so the answer is 26
(FYI: "/" means division)
She would need 360 square inches of fabric, we know this by using the heron's formula P =100, S = 50
A = (50(50-41)(50-41)(50-18))^.5
A = (50(9^2)(32))^.5
A = 9(50(32))^.5
A = 9(1600)^.5
A = 9*40
A = 360
360*0.15 per piece equals $54
Answers:
360, 54
Answer:
80 square centimeters
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
The total area of the arrow is equal to the area of a rectangle plus the area of a triangle
step 1
Find out the area of the rectangle
The area of rectangle is equal to
we have
substitute
step 2
Find the area of triangle
The area of triangle is equal to
we have
substitute
step 3
The area of the arrow is equal to
substitute the values
Answer:
It would take 12 men 4.5 (four and a half) days to do the same amount of work as the 9 men in 6 days.
Step-by-step explanation:
9 is 75% of 12 (12*.75=9) if they work at the same rate it would take 75% of the time it did for the 9 men (6hrs*.75=4.5)
All percents are not whole. And no whole number can be rational, because a ration is a piece of, not a whole. I hope this helped!
