Answer:
let Elijah age be a
Then
2*a + 17 =47
2a=47-17
2a=30
a=15
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
6x+5=11
6x=11-5
6x=6
x=1
'Of' in math means 'multiplied by,' so the equation that we can set up is:
So your answer is 320.
There are 2.54 cm in 1 inch. Since we are estimating, we can round the average growth per year to .5 cm which would give you roughly 5 years per inch of diameter (2.5 / .5 = 5). Since we have a tree with a 4 inch diameter, we can estimate the age of the tree is...
4 inches x 5 years/inch = 20 years old.
The answer would be 2.5.
hope this helps (;