Question

What is the value of the expression –c + d when c = –3.5 and
d = –12.8?

A.
–9.3

B.
15.3

C.
16.3

D.
–16.3

Answer 1

ill help

Answer 2

silly just use a negative calculator from online and get your answer

Answer 3

plug in the numbers -(-3.5)+(-12.8).

Answer 4

d

Answer 5

two negatives equal a positive and a positive and a negative equal a negative. so its
3.5-12.8

Answer 6

which is -9.3

Answer 7

Whenever there is a negative applied to a negative number is will become postive. For example \(\sf\Large -(-3) = +3\)
Similarly when you add a positive number with a negative number, you will have to subtrac the two numbers. For example \(\sf 5+(-4)=5-4\)

And now your question has given you that \(\sf c=-3.5 \\d=-12.8\)

And they want you to find \(\sf -c+d\)
So lets plug in the numbers

\(\sf -c+d\)
\(\sf -(\color{red}{-3.5})+(\color{red}{-12.8})\)

So solve that given what I gave you above :)
@logan13