Answer:
9x
Step-by-step explanation:
X is an unknown variable so just leave x as it is
Because the (2x) and the (7x) are being multiplied together they are almost seen as their own category of things
Think about having two bananas in a bowl. I just threw in seven more to get a total of nine bananas in the bowl.
It's the same thing when you have a variable right next to a number! add them together as if they are alike terms.
2+7=9 therefore your answer should be 9x
Step-by-step explanation:
please mark me as brainlest
Answer:
Scale for drawing is 1:350
Step-by-step explanation:
scale is ratio of size of drawing and size of actual object for which the drawing is made
it is represented as
scale = size of drawing : size of actual object
given
length of model in drawing = 2cm
length of bedroom in reality = 7 meter
since there are two units we meter and cm
we convert both in same unit that is cm for simpler calculation
1 meter = 100 cm
7 meter = 7*100 cm = 700cm
length of bedroom in reality = 7 meter = 700 cm
Thus,
scale for drawing = length of drawing/ actual length of bedroom
scale for drawing = 2 cm : 700cm = 1:350
Scale for drawing is 1:350
Answer:
![\frac{1}{5^{7}}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%5E%7B7%7D%7D)
Step-by-step explanation:
![\frac{5^{-4}}{5^{3}} = \frac{1}{5^{7}}](https://tex.z-dn.net/?f=%5Cfrac%7B5%5E%7B-4%7D%7D%7B5%5E%7B3%7D%7D%20%3D%20%5Cfrac%7B1%7D%7B5%5E%7B7%7D%7D)
Answer:
7/10
Step-by-step explanation:
1 1/5 -1/2 = 6/5 - 1/2 = 12/10 - 5/10 = 7/10