Answer:
26
Step-by-step explanation:
Answer:
yes, they do
Step-by-step explanation:
added together it equals 254, so unless there is tax they have enough
Answer:
Step-by-step explanation:
=-0.625a-2.8b
Answer:
Step-by-step explanation:
1) 2x + y =7 -------------(I)
x - y = 2 -----------(II)
2x + y = 7
<u> x - y = 2 </u> {Now add both the equations. 'y will be cancelled}
3x = 9
x = 9/3
x = 3
Plugin x = 3 in equation (I)
2*3 + y = 7
6+ y = 7
y = 7 - 6 = 1
Answer: a) y = 1
2) Prime factorize 12 , 15 and 18
12 = 2 * 2 * 3
15 = 3 * 5
18 = 2 * 3 * 3
HCF = 3
e) 3
Ok so a rectangular prism is the same as a rectangular cuboid.
The surface area is all the areas of the faces added together ->
There are three different faces that occur twice
length -> l
width -> w
height ->h
2( l * w ) + 2( l * h ) + ( w * h )
2 ( 10 * 4.5 ) + 2 ( 10 * 8.75 ) + 2 ( 4.5 * 8.75 ) = 343.75 cm2
Therefore it's A
Hope this helps :P
