E - 30. From 6 to 9 is increase of 1.5times
Answer:
12
Step-by-step explanation:
We can count the cubes.
One the right side there are 3 rows of 2 cubes each which is 6
There are 2 sets of identical " sets" of blocks
2*6 = 12
There are 12 blocks
Answer:
12i
Step-by-step explanation:
be careful with your screenshots and make sure it doesnt show your name
Answer:
The unknown dimension is 35
Step-by-step explanation:
The perimeter of a rectangle is l+l+w+w or 2l+2w (l=length, w=width)
then we subtract 14 from 84
Let's check our answer
<u>Hope this helps :-)</u>
Let's let the weight of a large box be L, and the weight of a small box be S.
We know that 5 large boxes and 3 small boxes is 120kg, so:
5L + 3S = 120
We also know that 7 large boxes and 9 small boxes is 234kg, so:
7L + 9S = 234
You can multiply the first equation by 3 to get:
15L + 9S = 360
See how now both equations have 9S? We can now subtract one from the other:
(15L+9S) - (7L+9S) = 360-234
8L = 126
L = 15.75
Now sub this value back into an equation:
(5x15.75) + 3S = 120
3S = 41.25
S = 13.75
Double check these values
(7x15.75) + (9x13.75)
= 110.25 + 123.75
=234, which is consistent with above.
So a large box is 15.75kg, and a small box is 13.75kg.
Hope this helped
