SOLUTION: 7.)two thrids + three fours= it is common denominators that's why i need help 8.)3-f=five sixs 16.)round 36.486 to the nearest hunhredths. 25.)decribe how to mentally calculate

Question 126620This question is from textbook saxon math 76
: 7.)two thrids + three fours= it is common denominators that's why i need help
8.)3-f=five sixs
16.)round 36.486 to the nearest hunhredths.
25.)decribe how to mentally calculate one tenth of $12.50.
30.)if l=1.5 and w= 0.75 then does lw equal? This question is from textbook saxon math 76

Found 2 solutions by checkley71, stanbon:
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
2/3+3/4 A COMMON DENOMINATOR IS ALWAYS THE MULTIPLICATION OF THE 2 DENOMINATORS (3*4)=12.
HOWEVER NOT ALWAYS THE LCD. IN THIS CASE IT IS THE LOWEST.
(2*4+3*3)/12=(8+9)/12=17/12 OR 1 5/12 ANSWER.
------------------------
3-F=5/6
-F=5/6-3
-F=(5-3*6)/6
-F=(5-18)/6
-F=-13/6 ANSWER.
--------------------------
36.49 ANSWER.
--------------------------
12.50 TIMES 1/10 REQUIRES THE DECIMAL POINT TO BE MOVED 1 PLACE TO THE LEFT.
12.50*1/10=1.25 ANSWER.
------------------------------
1.5*.75=1.125 ANSWER

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
7.)two thrids + three fours
(2/3) + (3/4)
least common denominator is 12
= (8/12) + (9/12)
= (17/12)
-------------------------
8.)3-f=five sixs
3-f = (5/6)
Add "f" to both sides to get:
f+(5/6) = 3
Subtract 5/6 from both sides to get:
f = 2 1/6 or 13/6
-----------------------------------
16.)round 36.486 to the nearest hundreths.
36.49
-------------------
25.)decribe how to mentally calculate one tenth of $12.50
Move the decimal point one place to the left.
------------------------
30.)if l=1.5 and w= 0.75 then does lw equal?
lw = 1.5*0.75 = 1.125
========================
Cheers,
Stan H.

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