(-5) - (+2) - (-3)= alguien que me explique como aser eso ​

-5-2+3=0

Step-by-step explanation:

-(+2)=-2. -5-2=-3. Tambien tenemos -3. -(-3)=+3. -3+3=0.

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.