Answer:
D. 39%
Step-by-step explanation:
What you do is you take the .21 and the total of the 10th grade which is .54 and put it into a fraction like this .21/.54.
You will get .388 but rounded to the nearest percent is 39%.
9) Ben would be farther because its about 270 after 5 hours
10) 15 miles per hour
No, it is not. This is because there is only one variable, instead of two.
9514 1404 393
Answer:
Step-by-step explanation:
Let x represent the amount invested at 8%. Then the total interest earned is ...
0.06(7000 -x) +0.08x = 480
420 +0.02x = 480 . . . . . . . . . eliminate parentheses
0.02x = 60 . . . . . . . . . . subtract 420
x = 60/0.02 = 3000 . . . . . divide by the coefficient of x
$3000 was invested at 8%; $4000 was invested at 6%.
Steps of construction:
a)Draw AC = 8cm.
b)Draw perpendicular bisector XY of AC meeting AC at O.
c)From O cut off OD = ×6 cm = 3 cm along OX and OB = ×6 cm =3 cm along OY.
d)Join AB, BC, CD, and DA.
ABCD is the required rhombus