7x+4+x=20
8x+4=20
8x+4-4=20-4
8x=16
Divide by 8 for 8x and 16
8x/8=16/8
x=2
Check answer by using substitution method
7(2)+4+2=20
14+6=20
20=20
Answer is x=2
Answer:
puedes multiplicar 3 y 243 (you can multiply 3 and 243)
Step-by-step explanation:
espero que esto ayude (hope this helps) :)
The distance from 0 on the number line represents the absolute value of the number
Answer: Look in step-by-step explanation
Step-by-step explanation:
Area has a unit of cm^2 or m^2, whilst Volume has a unit of cm^3 or m^3
Using this information, we can see that we have to square both sides of the similarity ratio for the area ratio and cube both sides of the similarity ratio for the volume ratio
For example, question 2 states that the similarity ratio is 3:6, so the area ratio is 3^2:6^2 or 9:36 and the volume ratio is 3^3:6^3 = 27:216
You can do the rest from here
