Question

PLEASE HELP!!!


What value of a makes the equation true?



1.7a+0.3a=4/5



A. a=1 3/5

B. a=2 4/5

C. a=−1 1/5

D. a=2/5

Answer 1

What do you think?

Answer 2

C or D

Answer 3

Use your calculator to substitute each value into the equation.

Answer 4

Or, you can try adding like terms and solving for a.

Answer 5

I still think C or D

Answer 6

I know A and B are to high but I'm leaning more towards D

Answer 7

Combine the like terms....

\(\huge{(1.7a+0.3a) \rightarrow 2a}\)

In which we have this equation....

\(\huge{2a=\frac{4}{5}}\)

We would then divide by 2 to get the variable a to itself....

\(\huge{\frac{2a}{2}=\frac{4}{5} \div 2 \rightarrow a = \frac{4 \div 2}{5}}\)

Answer 8

So yea you are correct about it being D more :D

Answer 9

thanks :-D

Answer 10

np :)