2x + 3x - 10 = 70
5x - 10 = 70
5x = 70 - 10
5x = 60
x = 60/5
x = 12
Now that we know the value of x,
the value of QSR = 3(12) - 10.
QSR = 36 - 10
QSR = 16
ANSWER: 16
Answer:
I only know the first one.
The surface area of the prism is <u>900</u> cm2
Step-by-step explanation:
To solve the surface area, we need to find the area of the SURFACE not the inside of the cube. Lets do the rectangles first.
28 x 13 = 364
28 x 5 = 140
28 x 12 = 336
1 1
336
+ 140
364
-------------
8 4 0
Now lets do the triangles.
Remember! To find the area of a triangle, you have to do Base x Height x 1/2 because it's half a rectangle.
(The triangles have the same area)
12 x 5 x 1/2 = 30
12 x 5 x 1/2 = 30
30
+ 30
--------
60
The last step is to add the areas of the triangles and the rectangles.
1
840
+ 60
------------
900 cm2
<em>The answer is 900cm2</em>
<em />
This <u>Is not</u> copy pasted, I actually put in all this effort.
Hope this helps :) And have a wonderful day! :D
8+11= 96
8+11=8+(11*8)=8+88=96
I hope I'm right
Answer:
35 people did no travel by any of those modes of transportation.
Step-by-step explanation:
Reviewing the groups described, we can see there are 170 that traveled by either <u>plane or train</u> and 50 traveled by bus, but not <u>plane or train</u>.
This means that the 50 people that traveled by bus are not included in the group of 170 that used either plane or train.
Since those two groups include people that used bus (50 people) and people that used either plane or train (170 people), the union of these two sets include all the people that used at least one of the tree modes of transportation mentioned (bus, plane or train).
The result of the union between these two sets is 50+170=220 people which travel by at least one of those modes of transportation.
Since the total number of surveyed adults is 255, the number of people that did not travel by any of these modes of transportations is 255-220=35 people.