Answer:
130
Step-by-step explanation:
2x+100=5x+55
subtract 55 from both sides
2x+45=5x
minus 2x
45=3x
divide by 3
x=15
plug it in
2(15)+100=130
Difference means you want to find the change between two, thus u subtract between both of it.
m-2
Answer:
The area of triangles are 16 cm^2 and 49 cm^2
Step-by-step explanation:
we know that
If two figures are similar, the ratio of its perimeters is equal to the scale factor and the ratio of its areas is equal to the scale factor squared
Let
z ----> the scale factor
x ----> the area of the smaller triangle in square centimeters
y ----> the area of the larger triangle in square centimeters
we know that
so
-----> equation A
----> equation B
solve the system by substitution
substitute equation A in equation B
solve for y
Find the value of x
therefore
The area of triangles are 16 cm^2 and 49 cm^2
Answer:
I.8 D.30 H.153 A.20 cm
Step-by-step explanation: