for the triangle...
b=2h
a=(1\2).bh=648
(1/2).2h.h=648
h2=648
h-18|2 in
h=36|2 in
for the rectangle...
L=3+w
a=l+w=648
{3+w}w=648
w2+3w-648=0
Only positive W values make sense here..
w-24=0
w=24 in
So..
L=3+24
5x-50= 30-15x
20x= 80
x= 4 is the solution to this problem
Answer:
$57.62
Step-by-step explanation:
$53.98 x 6.75% = $3.64
$53.98 + $3.64 = $57.62
Answer:
no.of boys is 45
Step-by-step explanation:
here, let the number of boys and girls be 5x and4x
ATQ,
5x=4x+9
or,5x-4x=9
or,x=9
then, the number of boys is 9×5=45
and the number of girls is 9×4=36..
Answer:
The mathematical expression is : (15 - 4) x (14 - 6) square feet.
The evaluation of this expression gives 88 sq ft.
Step-by-step explanation:
The length of the shaded region is (15 - 4) feet
The width of the shaded region is (14 - 6) feet
hence the expression for area is
(15 - 4) x (14 - 6) square feet.
fyi, if you work this out, you will get
(15 - 4) x (14 - 6)
=11 x 8
= 88 square feet.
